OUR PLEDGE TO YOU: When you buy W ebster products, you buy total service. Webster is the unique, single- source supplier of an extensive line of heat- ing products. W e manufacture fuel units, supply and transfer pumps, valves and oil heat accessories. And we constantly seek better solutions and set higher standards for the oil heat industry. Webster is committed to reliable servicing of its products. As always, our field service people provide professional schooling and make training materials and demonstration units available for training. We are ready to work with you to help solve your specific heating problems. An ISO 9001:2008 Company Webster ® Fuel Pumps & V alves A Division of Capital City Tool, Inc.
Transcript
OUR PLEDGE TO YOU:
When you buy W ebster products, you buytotal service. Webster is the unique, single-source supplier of an extensive line of heat-ing products. W e manufacture fuel units,supply and transfer pumps, valves and oilheat accessories. And we constantly seekbetter solutions and set higher standards forthe oil heat industry.
Webster is committed to reliable servicing ofits products. As always, our field servicepeople provide professional schooling andmake training materials and demonstrationunits available for training.
We are ready to work with you to help solve your specific heating problems.
An ISO 9001:2008 Company
Webster®Fuel Pumps & ValvesA Division of Capital City Tool, Inc.
This Webster® Service Technician's Handbook issupplied as a service to our customers, dealers andinstallers. It represents our efforts to share with themour experiences of many years with our productsin the field, and to also provide condensed cataloginformation to you on Webster products.
This booklet is not intended to be all-inclusive, orto be directly applicable to products manufacturedby any other company.
It remains the complete responsibility of all partiesinvolved in the design and installation of any systeminvolving Webster products to insure that thedesign and installation of the system is correct forthe individual circumstances, and that the systemis installed in compliance with all applicable codes,standards, regulations or other restrictions.
Neither Webster, nor any of its authorized repre-sentatives, assume any responsibility , obligationor liability relating to the design and/or installationof any systems utilizing Webster component parts,and nothing contained in this Service Technician'sHandbook should be construed as constitutingany extension of its standard W arranty Policy asstated in this booklet.
Webster®Fuel Pumps & Valves
Warranty Policy
Webster warrants that Products shall be free from defects inmaterials and workmanship for a period of three (3) years fromthe date of manufacture or two (2) years from the date of instal-lation, whichever period expires first. W ebster will rebuild orreplace, at its option, all Products proven to its satisfaction to bedefective within such warranty period and returned to theWebster factory transportation charges prepaid. Webster's soleobligation and buyer's exclusive remedy hereunder is limited tosuch rebuilding or replacement.
No products may be returned to W ebster unless the prior writ-ten consent for said return shall have been obtained from theCustomer Service Department in Frankfort, Kentucky . ThisLimited Warranty does not cover shipping costs to and from theWebster factory, any costs for labor or otherwise related toproduct removal or replacement, or any other costs of anynature without prior written consent by Webster.
Parts, products and accessories made by others are warrantedonly to the extent of the original manufacturer 's warranty toWebster.
This warranty shall not apply to acts of God, war or civil insur-rection, nor shall it apply to products which, in the sole judge-ment of Webster, have been subject to negligence, abuse, acci-dent, misapplication, tampering, alteration; nor due to otherthan normal application, use or serv ice, including but not limitedto, operational failures caused by corrosion, rust or other foreignmaterials in the system, or operation at pressures in excess ofrecommended maximums.
Purchaser shall be solely responsible for determining suitabilityfor use of W ebster Products. W ebster shall not in any eventwhatsoever, have any liability with respect to such determination.
THE FOREGOING WARRANTY IS EXCLUSIVE AND INLIEU OF ALL OTHER W ARRANTIES, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THEIMPLIED WARRANTIES OF MERCHANT ABILITY ANDFITNESS FOR A PARTICULAR PURPOSE. WEBSTERSHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL,INCIDENTAL OR CONTINGENT DAMAGES WHATSOEVER.
NOTE TO CONSUMERS: THIS LIMITED WARRANTY ISEXTENDED TO THE COMMERCIAL CUSTOMERS,DEALERS AND INSTALLERS OF WEBSTER ONLY. THESUPPLIER / INST ALLER WILL EXTEND W ARRANTYCOVERAGE TO YOU WHICH COVERS WEBSTER'SPRODUCTS. WEBSTER'S WARRANTY TO SUCH CUS-TOMERS, DEALERS AND INSTALLERS WILL BACK UPTHE WARRANTY EXTENDED TO THE CONSUMER.
FUEL UNITSGENERAL INFORMATIONOIL HEATING TERMINOLOGYAs with most major industries, oil heating has devel-oped a language of its own which contains a number ofterms not encountered elsewhere The following listincludes the terms which are most common to the oilheating industry.
Single-stage fuel unit: unit with one set of gears for bothsuction and pressure.
Two-stage fuel unit: unit with two sets of gears, one forsuction and one for pressure.
One-pipe system: one line, an inlet line, from tank tofuel unit.
Two-pipe system: two lines, one inlet and one returnline, from tank to fuel unit.
Bypass plug: small hex socket head pipe plug used toclose internal port and convert unit from one pipe to twopipe operation.
Bleed: to remove air from system.
Lift: oil drawn from a level below pump expressed in feetof lift or inches of mercury.
Head of oil: column of oil over fuel unit expressed in psior feet.
Inlet port: port which receives oil from tank.
Bypass port: port which discharges surplus oil back totank in two-pipe system.
Return line port: same as by-pass port.
Valve differential: number of pounds per square inch thepump pressure must drop from operating pressure toclose nozzle valve.
Delivery: gallons per hour pumped from the nozzle out-let assembly of the fuel unit.
Gear Set Capacity: Total amount of oil being displacedby the pumps gear set(s).
HOW A FUEL UNIT WORKS
The fuel unit performs three basic functions:
1. Supply the Oil. The pumping action,of the fuel unit isaccomplished by the gearset. In a single-stage fuel unitthere is only one set of gears. Their function is to drawoil from the tank and deliver the oil to the nozzle undersufficient pressure to ensure the oil is properly atomizedfor combustion. A single-stage fuel unit is generally
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used where the fuel supply tank is above the burner orwhere the inlet vacuum is limited to 10” Hg or less whenmeasured at an unused inlet port.
A two-stage fuel unit has two sets of gears. The suctiongearset creates a vacuum within the fuel unit whichdraws oil from a submerged tank or a tank locatedbelow the oil burner and discharges it into an intermedi-ate chamber or reservoir which supplies the pressuregears. The pressure gearset delivers oil under pressureto the burner nozzle. Thus, the pressure gears do noneof the lifting.
2. Clean the Oil. Clean oil isessential for the ef ficientoperation of any oil burner .The purpose of the filter is toprotect the nozzle from for-eign particles or any othermatter that might clog theminute nozzle opening.Webster fuel units utilize ourexclusive rotary filter whichreduces the need for trouble-some periodic cleaning. Therotary filter's blades rotate at motor speed with constantcleaning action to minimize clogging, compared tostrainer type filters. For maximum protection, an addi-tional line filter should be u sed, in accordance with rec-ommended standard practice.
3. Build Pressure and Provide Clean Fuel CutoffProbably the most important functions of the fuel unitare to build pressure to properly atomize the fuel oil andto provide clean cutof f of oil when the burner shutsdown. These functions are primarily performed by thevalve assembly consisting of a pressure regulatingspring, pressure adjusting screw, valve and valve seat,working in conjunction to the gearsets.
The pressure regulating spring and the pressure adjust-ing screw determine the pressure at which oil is deliv-ered to the nozzle. For example, when the spring in avalve assembly is set for 100 pounds per square inchpressure the valve will not open until the pressure gearshave built up enough pressure in the valve chamber toraise the piston from its seat. This prevents oil fromreaching the nozzle while under too low a pressure forcorrect atomization. The valve and valve seat controlthe flow of oil. They also are responsible for a sharpclean cutoff when the pressure within the fuel unit dropsbelow the setting of the valve spring. W ebster'sM34DK-3 fuel unit has exceptionally fast fuel cutof fthrough the additional use of an internal flow controldevice.
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BASIC SYSTEM INSTALLATIONS
There are two basic types of installation for fuel units:one-pipe systems or two-pipe systems.
The first of these, a one-pipe system, should not beconfused with a single-stage fuel unit. A one-pipe sys-tem can be installed employing either a single-stage ora two stage fuel unit. It is used where a gravity flow ofoil is available.
In a one pipe (single- or two-stage) system, the internalpumping capacity exceeds nozzle requirements. Theexcess flow is bypassed by the internal regulating valveand is recirculated within the pump. In the one-pipe con-nection, inlet line flow equals nozzle flow rate.
The second basic type is known as a two-pipe systemand should always be used wherever the oil supplylevel is below the fuel unit, whether it be a single or two-stage fuel unit.
On a two-pipe system there is a second pipe, called areturn line, between the fuel unit and the tank. Theexcess oil over and above that required by the nozzle isbypassed at the valve and returned to the tank.
A single-stage unit on a two-pipe system can be usedon lifts up to 10” HG. On the other hand, a two-stagewith a two-pipe system may be used on lifts up to 15” HG.
Existing Inside Tank Installation- One Pipe SystemTank Above Burner Level
With the conventional one pipe gravity feed installationboth furnace and water heater can be operated of f thesame suction line. Merely tee of f the present line towater heater as shown in drawing below making sure oilsupply is above burner level at all times.
Existing Outside Tank Installation—Tank Above Burner Level
The water heater may be added to the system by con-necting the suction line to the furnace suction line as
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shown in drawing below . No return line is necessaryfrom the water heater as the system is flooded due tothe siphoning action when the tank is above burnerlevel.
Existing Outside Tank Installation —Tank Below Burner Level
The water heater may be added to the system byinstalling a check valve in the suction line at both fuelunits as shown in drawing below. Both units must be setfor (2) two-pipe operation. This method should only beused when it' s impossible to add an independent suctionline to the water heater as shown in bottom drawing
New Outside Tank Installation —Tank Below Burner Level
Individual suction lines should be used on all new instal-lations. Return lines may be manifolded as shown indrawing below.
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INSTALLATION AND SERVICE TIPS
When installing and servicing oil heating fuel units, sev-eral key points including service tools, use of propertubing sizes, fuel supply cut-off, and possible causes ofseal failure should be understood.
Effective Gauge Use
There are valuable tools needed in servicing any fuelunit, the two most essential are the pressure gauge andthe vacuum gauge. It is factua lly known that if thesegauges were used consistently , 75% of the fuel unitssent in for repair would never need to be removed fromthe burners. With the correct use of these two gauges,it is possible to check vacuum, lift, air leaks, delivery ,pressure and cut-off.
Vacuum Gauge
The vacuum gauge can determine the existence of airleaks in the suction line. For example, if checking a sys-tem in which the tank is buried below the burner leveland the oil passes through a line filter , the vacuumgauge must show a reading. If the gauge does not showa reading, an air leak is present.
NOTE: When installing fuel units, to assure compliancewith National Fire Protection Association's bulletin 31,“Installation of Oil Burning E quipment”, fuel unit inletpressures should not exceed 3 psig.
Vacuum Data
Before removing a fuel unit from an oil burner , a checkshould be made with vacuum and pressure gauges ifyou suspect fuel unit trouble.
The vacuum gauge should be applied to the inlet port(“IN”) opposite the inlet port being used, or inserted inthe inlet line with a “TEE”.
Pressure Gauge(100 psi Operating
Pressure)
Nozzle Line
Inlet Line
Vacuum Gauge(Optional Inlet Connection)
Return Line(When Used Two Pipe
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On installations where the oil tank is below the fuel unit,the gauge reading should show t he amount of vacuum(approximately 1" vacuum per 16" of vertical lift, plusthe tube loss of total run).
NOTE:
1. The viscosity chosen for the above figures is 50 SSU.The above losses will be reduced at lower viscosities.
2. The gravity chosen is 40° API (60°F) at 68°F, whichgives a specific gravity of 0.822. Gravity of No. 2 oilsvaries from 30° to 45° API.
3. Even though a fuel unit is capable of a very high vac-uum, this has very little to do with the maximum advis-able lift because of the volatility of the oil under vacuum,which varies with dif ferent oils. Under certain condi-tions, installations as high as 28 feet have operatedsat-isfactorily with a two-stage unit, but generally high liftsshould be avoided on any liquid having volatile frac-tions. When the combined vertical lift and the equivalentlosses through the tubing add up to 10” vacuum or morefor single-stage pumps, 15” vacuum or more for two-stage pumps, use of a W ebster supply pump unit isadvisable.
If the vacuum gauge reads higher than the calculatedvacuum, look for restriction in the suction line ... aclosed tank valve, kink ed copper tubing, plugged filter ,sticking foot or check valve, frozen oil line, undersizedoil line, or excessive oil lift. On the other hand, if thegauge reading is below the calculated vacuum, look forair leaks in the lines, valve, fittings, or fuel unit.
On gravity fed jobs where the oil tank is above the fuelunit, vacuum should read zero except when restrictionsare apparent such as closed shut-of f valve, clogged fil-ter, kinked line, etc. Any of these restrictions should beeliminated.
Relation between vacuum and vertical lift40° API all at 68° F
Ins. of Ins. of Ins. ofVacuum Lift Vacuum Lift Vacuum Lift
1 1'4” 8 11'0” 15 20'7”
2 2'9” 9 12'4” 16 22'0”
3 4'1” 10 13'9” 17 23'4”
4 5'6” 11 15'1” 18 24'9”
5 6'10” 12 16'6” 19 26'1”
6 8'3” 13 17'10” 20 27'6”
7 9'7” 14 19'3”
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Pressure Gauge
The pressure gauge, on the other hand, shows whetherthe gears are pumping and building up a steady evenpressure to deliver oil to the nozzle. It also showswhether the shut-off valve in the nozzle line is giving apositive cut-off of the oil flow.
Pressure Data
A pressure gauge applied to the pressure gauge portreveals the pressure to which the fuel unit has been reg-ulated. An adjustment can be made to suit the firingconditions (usually 100 psi). Also the pressure gauge,when applied to the pressure gauge port, can be usedto check fuel unit ef ficiency. A unit in satisfactory oper-ating condition should be able to support a nozzle at fullspray, up to several psi above the rated burner pres-sure. Fuel unit manufacturers typically rate domesticunits for maximum burning rate at a nominal 100 psi.Collapse of nozzle spray below specified limits indicateseither excess bypass, missing or damaged valve gas-ket, worn valve piston or sleeve, worn gear set, or pumpRFS less than nozzle rating. Pumping capacity alsodecreases under correspondingly higher lift (or vacuum).
A pressure gauge applied directly to nozzle outlet portfor cut-off check should hold dif ferential pressure onshutdown. For example, with operating pressure of 100psi, the cut-of f should be approximately 80 psi. If thepressure gauge drops below the cut-off point, this wouldindicate a leak at cut-of f, therefore the valve assemblyshould be disassembled, cleaned or replaced if neces-sary. Cut-off pressure must never be more than 20%below set operating pressure.
To determine what pressures should be provided byeach pump, refer to the selection charts in the desiredmodel sections.
Correct System Tubing Sizing
Many people both in engineering and in service makethe mistake of laying out and installing jobs with tubingwhich is too small in diameter and too long in length. If
Return Line
Inlet Line
75-90 psi cut-of f point shouldhold. If pressure drops back tozero, indicates leaky cutoff.
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a fuel unit with a pumping capacity of not more than 30gallons per hour is used, tubing of 1/2” OD can be usedwith safety.
The tubing size can vary widely depending upon flowrate. See the pipe sizing charts for help in determiningwhich tubing size is best suited for each application.
To Determine Suction Line Size in InstallationsUsing Webster Fuel Units on Two-Pipe Systems
1. Check suction gear capacity (see table of pumps).
2. Measure total tube length (horizontal and vertical).
3. Refer to “Friction Tube Loss Chart” for desired tubingsize. Read up from line “total feet of copper tube” to“suction capacity” in gph.
4. Read left to column “inches of vacuum at fuel unit”.(This is vacuum required to draw oil through tube listedof given length.)
5. If installation has lift add .75” of vacuum for every footof lift.
Rule of Thumb:
A quick rule to check an installation is to figure 1”of vacuum for every foot of vertical lift, and 1” ofvacuum for every 10' of horizontal run Refer toFrictional Tube Loss charts for actual installation data.
6. Total inches of vacuum (frictional tube loss plus lift ifany).
7. If total is over 10” when single stage is employed ontwo-pipe system, check on next larger tube size chartfor proper tube size.
8. If total is over 15” when two-stage unit is employedon a two-pipe system, check on next larger tube sizechart.
9. The above does not allow for any added restrictionssuch as line filter, elbows, sharp bends, check valves, etc.
On high lifts and long runs, too small tubing will causethe oil to separate and have a milky appearance. This isnot air, it is actually light, volatile portion of the oil sepa-rating from the heavy portion. This is likely to occur anytime the vacuum gauge shows a reading of 15” or more,and may occur at a lower vacuum with some oils. Whenvacuums of 20” to 22” are reached, the pressure gaugewill start to bounce and delivery at the nozzle will beginto fall off. To correct these conditions, check the tubing.If the tubing size is correct and there are no kinks orother restrictions, a supply or booster pump may be
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required to assure the fuel unit of a solid column of oil.This is especially desirable where a series of suspend-ed furnaces are included in the system with high liftsand long horizontal runs.
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Checking Fuel Cut-Off
Another error made by some is to say the valve is faultyor the unit has a poor shut-of f when the real trouble isair trapped in the nozzle line between the fuel unit valveand the nozzle itself.
This condition is generally found when a new installa-tion is made or when air enters the suction line due topoor joints. This is particularly true on high vacuuminstallations. When air is mixed with oil and pumpedthrough the fuel unit into the combustion chamber , agood fire can result while the burner is in operation.However, on shut-down the valve closes and the airbecomes trapped between the valve and the nozzleitself. This air is no longer under pressure and the bub-ble expands forcing the oil through the nozzle orificeinto the combustion chamber . This is not poor cut-of fbut trapped air causing the oil to squirt. It is necessaryto have a tight installation and to purge all air in order tohave clean sharp cut-off.
REMEMBER: A squirt out of the nozzle after the burnerstops means that air is trapped. Get rid of the air andthe problem will be gone.
This condition is found less often in a two-pipe systembecause air is picked up in the suction line, is dis-charged into the by-pass chamber of the fuel unit andreturned to the tank if the leak is not too large. However,air can be trapped in the nozzle line of the two-pipe sys-tem. Several hours of burner running may be necessarybefore the air is absorbed by the oil and passed throughthe nozzle.
Fast Cut-Off Required
Unlike heating equipment of the past, compact boilers,furnaces, domestic water heaters, and burners madetoday require substantially faster shut-of f to eliminatepulsation on starts and stops. The valve must open andclose while the fan speed is high to provide enoughoxygen for complete combustion. This may be accom-
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plished by using a solenoid valve which cuts off the flowof oil instantly on shut-down.
Since the use of a solenoid is often costly for someinstallations, Webster offers the M34DK-3 as a fastshut-off alternative. In this unit the valve opens andcloses at approximately 2, 400 rpm fan speed. At thisspeed the air pattern is well established, both in thetube and in the chamber, and the burner operates with-out a smoke plume, eliminating pulsation on starts andstops. The volume of air delivered by the fan at such aspeed provides the oxygen necessary for completecombustion insuring clean, quiet operation when theburner is set at maximum efficiency.
Checking Seal Leaks
Seal leaks generally do not occur; they are caused. Itmust be remembered that a seal can be operated underconditions ranging from high vacuum to pressure (psi).Where there is a head of oil over the fuel unit, a pres-sure gauge can be installed in the suction port of theunit to check head pressure. If the head pressure isover 3 psi an oil safety valve (OSV) should be installedin the suction line between the oil tank and the unit.
This also holds true where there are pressurized linesleading to the fuel unit, such as a series of suspendedfurnaces being served by a supply pump.
REMEMBER: To comply with NFPA standards, fuel unitinlet pressures must be limited to 3 psi.
If Pump Doesn't Work, Check for Air Leaks
90% of start-up problems are due to air leaks in the suctionline. Be sure to double check for air leaks if there a reproblems with poor cutoff, noisy operation, or erratic fire.
To inspect for air leaks, check to be sure return line issubmerged. Also, check all fittings, all joints, and theoptional inlet plugs for tightness.
Check for air leaks:❏ Return line must be submerged❏ Check all fittings❏ Check all joints❏ Check optional inlet plugs❏ DO NOT use compression fittings
90% of start-up problems are due to air leaks in the suc-tion line . . . So check ✔ and doubt check ✔ for airleaks.
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Filter Use
Both the Webster M and R Series contain an internalrotary filter. In addition to this filter , it is recommendedthat an external filter be us ed. The self cleaning rotaryfilter is designed to prolong fuel unit life and reduce fuelunit maintenance. It is not intended to be a replacementfor the external filter.
IMPORTANT: Use of non-hardening oil pipe dope isrecommended on threads of all fittings. Do not loosen ortry to tighten any pump plugs not to be used in theinstallation. Do not use Teflon Tape. Evidence of teflontape use will be cause to void all warranties.
SERVICE CALL CHECKLIST
The following procedure has been established to helpsave on service time and needless work when checkinga “no heat” service call. This procedure is intended to beused by qualified heating service technicians only.
1. Check the thermostat to make sure that corrosion,dust or other foreign matter are not causing faulty con-tact and switches are properly set.
2. Check both the main fuses and the oil burner circuitfuses. Replace if required.
3. Check the oil supply and the shut-of f valve in the oilline. Adequate oil and open valve are required.
4. Open the door of the heating plant and see if there israw oil on the walls of the combustion chamber
5. Leave the inspection door open and press the burneroil reset button.
6. Check the oil burner controls in accordance with theoil burner manufacturer's instructions.
7. If at any point on the foregoing checks the burneroperates, observe it for two or three complete cycles todetermine whether the stoppage may occur.
8. If the burner does not operate, check to see if motor ,fan and pump shaft are all rotating.
9. If there is oil spray but no ignition, check all electricalconnections and the transformer.
10. If the electrical connections and transformer areoperating properly, remove the firing assembly andcheck the electrodes for coking, spading, and crackedporcelains.
11. While the firing assembly is out of the heating plant,clean or replace nozzle.
12. If no oil spray appears, check the line filter and thefuel unit, using vacuum and pressure gauges.
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Vacuum gauge check usually covers the suction side ofthe system.
Pressure gauge determines efficiency of pumping gearsand valve. The valve can be serviced in the field. Wornpumping elements require the removal of the fuel unit.
Though these instructions may seem obvious, strictadherence to the sequence given can save valuableservice time when time is of importance.
METERING PUMP
MODEL # M17DN-M
Metering Pump for the air atomized waste oil burnermarket. Variable flow rates vs. RPM. Clockwise rotationlooking at shaft V iton seal. This unit is comparable tothe Suntec A2RA-7710 Pump.
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M34DK-3 SERIES FUEL UNITSSINGLE STAGE UNITS
To meet the needs of today' s fuel-efficient, downsizedand space efficient burners, Webster's popular M34DK-3incorporates improved access to both the bleed valveand bypass plug. Locating the bleed port plug assemblyon the side of the fuel unit prov ides the service techni-cian with one visible and accessible location to eitherbleed the fuel unit or change the bypass plug withoutremoving the burner . The M34DK-3 retains all of theindustry accepted, state-of -the-art features of theM34DJ-3 fuel unit. These include faster fuel cut-of f,improved priming on one-pipe installations, and reducedinlet line flow on two-pipe systems which results inreduced line noise. W ebster'sM34DK-3 fuel unit is avail-able in a single s tage,3450 RPM model ratedat 3 GPH. Operatingpressure is factoryset at 100 psi and isadjustable to 150 psi.The M34DK-3 is capa-ble of maintaining its 3gallon per hour fire sizeat up to 150 psi through-out its service life.
M SERIES FUEL UNITSSINGLE- AND TWO-STAGE
Light and extremely compact, the Webster M Series fuelunits have earned a reputation for reliability and efficiency.All units include the W ebster internal rotary filter . Therotary filter reduces the need for troublesome periodiccleaning. Because the filter blades rotate at motor speedwith constant cleaning action, clogging is minimal comparedto units that use internal filter screen. For maximum pro-tection, an additional line filter is recommended in accor-dance with standard practice. Another popular feature isthe easy-to-bleed valve assembly located on the side. A“D” drive reduces the harmful ef fects low-lubricity fuelshad on previous key-drive designs. Simple flange mount-ing and side-located nozzle ports make the M Seriesideal for fuel unit servicing. M Series fuel units are availablein single- or two-stage, 1725 and 3450 rpm models withcapacities to 15 gph.
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FUEL UNIT SPECIFICATIONS
M SeriesSingle- and Two-Stage Units
M34DK-3 Fuel UnitsSingle-Stage Unit
Capacities:M Series rated 3 gph @ 100 psi with #1, #2 fuel oil orkerosene.M34DK-3 unit rated 3 gph fire size for pressure from100 to 150 psi with #1, #2 fuel oil or kerosene.
Pressure:Built in pressure regulator.M Series factory set at 100 psiM34DK-3 unit factory set at 100 psi, adjustable to 150 psi.
Speeds: M Series—1725 and 3450 rpm M34DK-3—3450 rpm.
Rotation: Clockwise (D Style) or counterclockwise (C Style) whenviewed from shaft end.
Porting:1/8” NPTF: side location nozzle port, top located gaugeport1/4” NPTF: 2 inlets, and bottom return.
Shaft:5/16” dia. x 1.65” extension from mounting face withkeyless “D” drive.
Seal: Double lip type Buna N.
Mounting: Two bolt flange.
Filter: Self cleaning rotary type internal NOTE: External filter recommended with each installation
Maximum Inlet Vacuum: M models—10” Hg 2M models—15” Hg Refer to Table “Total Allowable Feet of Line” in this sec-tion.
U.L. Listed.To assure compliance with National Fire ProtectionAssociation's Bulletin 31,” Installation of Oil BurningEquipment,” fuel unit inlet pressure should not exceed 3 psig.Refer to the section on Oil Safety Valves (page 119) foradditional information.
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M-SERIES FUEL UNIT-CODE ANALYSIS
A— M = Single Stage2M= Two Stage
B— 17 = 1725 RPM34 = 3450 RPM
C— C = CCW rotation, outlet leftD = CW rotation, outlet right
(as viewed from shaft end)
D— A = Key drive, face seal, old style portingB = Std., face seal, old style portingC = Special, face seal, old style portingD = Std. lip seal, old style portingE = Special, lip seal, old style portingF = Same as D except revised portingG = Same as E except revised portingH = Same as F except o-ring on pressure
adjusting screwJ = Same as H except revised internal portingK = Same as J except revised porting and bleed
valve locationL = Same as K except revised porting and
bleed valve locationM = BIO PumpN = Waste Oil Pump
E— 3 = 3gph max. recommended fire size6 = 6gph max. recommended fire size15 = 15gph max. recommended fire sizeM = Metering Pump
F— No *=unit set 1 pipe(bypass plug not installed)
*=Unit set 2 pipe(bypass plug installed)
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DimensionsThe dimensions indicated apply to both M Model, sin-gle-stage units, and 2M Model, two-stage units. Refer totable for variable dimension X.
Dimension drawing shows nozzle, inlet and gage portlocations for D Style units. C Style units are the oppo-site of that pictured.
M Model Unit—Single-StageMax. Suction
Nozzle Fire GearSpeed Rota- Loca- Size Cap.**
Models rpm tion* Style tion* gph at 100 psiM17CL-6 1725 CCW C Lett 6 32M17DL-6 1725 CW D Right 6 32M34CL-3 3450 CCW C Left 3 29M34DK-3 3450 CW D Right 3 17M34CL-6 3450 CCW C Left 6 29M34DL-6 3450 CW D Right 6 29*As viewed from shaft end** Based on two-pipe installation2M Model Unit—Two-Stage
2M17CL-6 1725 CCW C Left 6 352M17DL-6 1725 CW D Right 6 352M34CL-3 3450 CCW C Left 3 352M34DL-3 3450 CW D Right 3 352M34CL-6 3450 CCW C Left 6 352M34DL-6 3450 CW D Right 6 35*As viewed from shaft end** Based on two-pipe installationFUEL UNITS (CROSS REFERENCE)
Webster Model No. Suntec Model No.M17DL-6 A1VA-7112M17DL-6 A1VB-7113M17CL-6 A1VC-7114M34DK-3 A2VA-7116M34DK-3 A2VB-7117M34DK-3 A2VA-7142M17CL-6 A1VD-7741M17DL-6 A1YA-7912M17CL-6 A1YD-7915M34DL-6 A2YA-7916
INSTALLATION DATAM Series units may be used in one-or two-pipe installa-tions They have vacuum capability up to 10” Hg on sin-gle-stage units, 15” Hg on two-stage units including pip-ing and lift losses. They are rated for use with #1 and #2fuel oil or kerosene.
IMPORTANT: Do not loosen or try to tighten any pumpplugs not to be used in the installation. NON HARDEN-ING OIL PIPE DOPE IS RECOMMENDED for use onthe threads of all fittings. Teflon tapes or paste must beused with care to prevent depositing tape pieces orfibers into critical int ernal areas of the pump. Reducedtorque must be used with teflon materials to avoidthread or casting damage EVIDENCE OF TEFLONMATERIAL IN INTERNAL AREAS OF THE FUEL UNITWILL BE CAUSE TO VOID WARRANTY.Installation Notes:
Nozzle port pressure at cutof f is not less than 80% ofset pressure on all except -15 models. -15 models donot have internal cutoff.
ʻFuel unit inlet pressure should not exceed 3 psig inorder to comply with National Fire ProtectionAssociation's Bulletin 31.”
M Series fuel units are available in standard C Style(counterclockwise rotation, nozzle port on left, asviewed from shaft end) or D Style models (clockwiserotation, nozzle port on right, as viewed from shaft end).
Important Rating Information
Recommended fire size (RFS) of pump decreasesas pump operating pressure is increased above 100psi nominal rated pressure, except M34DK-3, whichis rated to 150 psi. For adequate service life, nozzleflow at set pressure must not exceed RFS figures intable below.
Max. UL listed operating press. = 135 psi (“K”-150 psi)
RFS at RFS at RFS atPump Model 100 psi 135psi 150 psi
FeaturesTo meet the needs of today' sfuel-efficient, downsized andspace efficient burners,Webster's M34DM-3 incorpo-rates improved access to boththe bleed valve and bypassplug. Locating the bleed port plug assembly on the sideof the fuel unit provides the service technician with onevisible and accessible location to either bleed the fuelunit or change the bypass plug without removing the burner.
In addition to improved access the M34DM-3 cleanerblade has been thickened to provide a more robustcleaning action. For maximum protection, an additionalline filter should be used in accordance with recom-mended standard practice All of the BUNA-N elastomershave been replaced with VITON to provide extended lifeat critical locations within the fuel unit.
The M34DM-3 retains all the industry accepted, state-of-the-art features of the M34DK-3 fuel unit. These includefaster fuel cut-off, improved priming on single pipe instal-lations. This unit can easily replace your standard M34Dor A2VA residential pump.
The M34DM-3 is capable of maintaining a three gallonper hour fire size at up to 150 PSI throughout its designlife. The M34DM-3 is factory preset to 100 PSI and isadjustable to 150 PSI.
General Operation and Fuel Unit Oil FlowThe compact M34DM-3 Fuel Unit is engineered for ef fi-cient pumping of Bio fuel. The cut-away view illustratesthe oil flow through an M34DM-3 operating in a one pipesystem, with a suction line and no return to the storagetank.
A one pipe system is frequent ly used when the storagetank is located above the fuel unit, or when automaticventing is not necessary . Vacuum at the pump inletshould not exceed 10” Hg. For this type of installation tobe reliable, the total system must be completely airtight.During installation or servicing of the fuel unit, air may bemanually bled from the system through the side-locatedbleed valve.
The M34DM-3 will provide up to 10” Hg of inlet vacuum.The two pipe system (shown below), with both a suctionand return line is self-venting. This allows any air in thesystem to escape and be returned to the storage tankthrough the return line.
M34DM-3 Bio Pump
26
One Pipe SystemFuel enters the fuel unitthrough the inlet port and isdrawn into the front coverchamber. A vacuum, creat-ed by an inner and outerrotating gear set, pulls oilthrough the rotary filter andinto the gears. As oilmoves around the gears, itis compressed, creating ahigher pressure. Oil leav-ing the gear set branchesinto two paths. One path leads to the pressure regulat-ing chamber. A second path directs oil to the bleedvalve. Oil flowing into the pressure regulating chamberbranches into two paths. Up to three gallons per hourcan flow out the nozzle port, and the remaining oil by-passes the pressure regulator , returning to the frontcover chamber.
■ Fuel subject to vacuum
■ Fuel at atomization pressure
■ Fuel at return pressure
Two Pipe SystemThe by-pass plug, inserted through the bleed valve port,blocks the surplus oil return to the front chamber . Thisoil is directed to the return port and back to the storagetank.
27
Specifications
Firing Capacity:Recommended to 3 GPH fire size for pressures from100 to 150 PSI with #1, #2 fuel oil, Kerosene, orBio Fuel B100-B5 Bio Diesel
Gear Capacity:25 GPH @ 100-150 PSI with #1, #2 fuel oil, Kerosene,or Bio Fuel. B100-B5 Bio Diesel.
Pressure:Factory set at 100 PSI.Adjustable to 150 PSI.
Inlet Requirements:10” Hg maximum vacuum (approx. 10' vertical lift -exact distance will vary with tubing diameter andlength). 3 psig maximum inlet pressure.
Speed:3450 RPM.Rotation: (As viewed from shaft end): Clockwise(D Style).
Porting:• 1/8” NPTF, side located nozzle port.• 1/8” NPTF, top located gauge port.• 1/4” NPTF, bottom and cover located inlet ports and
bottom located return port.• Bypass plug accessible through the side located
bleed port plug assembly.• 3/8” flow through bleed valve.
Nozzle Location:(As viewed from shaft end):Clockwise (D Style) - Right side.
Shaft:5/16” dia., 1.65” extension from mounting face, withkeyless “D” drive.
Filter:Self-cleaning rotary type.
Elastomers:VITON shaft seal.All other seals are VITON.
Mounting:2 bolt flange - see interface dimensions.
28
Dimensions Dimensions in inches, ( ) = cm
Weight:4 lbs., 2 oz., shipped oil-filled.
NOTE: To assure compliance with National FireProtection Association Bulletin 31, “Installation of OilBurning Equipment”, fuel unit inlet pressure should notexceed 3 psig.
29
Waste Oil Pumps
SK41906 and SK41982
Webster now has available a Mini waste oil pump.Webster's waste oil pumps are available in single stagemodels, rated at 15 gph for the SK41906 (3450rpm) and20 gph for the SK41982 (1725rpm). Operating pressureis factory set at 100 psi. These waste oil pumps are ableto maintain their recommended flow rates throughoutthe 100 to 150 psi pressure range.
1RR SERIES
RPM Rotation GPH Rated PSI
1RR140D-4EK13 1725 CW 10 45
1RR243D-4EK13 1725 CW 20 45
1RR244D-4EK13 1725 CW 40 45
This single stage waste oil pump operates at 1725 rpm.The operating pressure range is 30-50 psi. Maximuminlet vacuum 10” Hg. V iscosity range is 34-7000 SUS(2.5 Centistokes), temperature range 40 F (min) - 160 F(max). This unit can be hub or flange mounted. Thepump can be used on one or two pipe installations.Double lip type V iton seals assure low starting torqueand provide positive protection from leaks. For waste oiland #4 or lighter fuel oils.
30
H.P
.V
olt
age
RP
MR
ota
tio
nG
PH
Rat
ed P
SI
SP
M-2
5AT
1RR
140
¼12
017
25C
W10
45
SP
M-2
5AT
1RR
243
¼12
017
25C
W20
45
SP
M-2
5AT
1RR
244
¼12
017
25C
W40
45
The
se u
nits
hav
e th
e sa
me
char
acte
risti
cs a
s th
e 1R
R m
odel
s bu
t inc
orpo
rate
s a
120
volt,
sin
gle
phas
e, 1
/4 h
p m
otor
.
Gen
eral
Sp
ecif
icat
ion
s
• S
ingl
e S
tage
• S
ingl
e pi
pe o
pera
tion
only
whe
n us
ed w
ith th
ick
oil.
• 17
25 R
.P.M
.
• O
pera
ting
pres
sure
ran
ge 3
0-50
P.S
.I.
• V
isco
sity
ran
ge 3
4–70
00 S
US
(2.
5-15
00 C
entis
toke
s).
• S
haft
seal
and
pis
ton
valv
e ar
e V
iton®
mat
eria
l.
• B
ypas
sing
noz
zle
type
.
• P
ower
Req
uire
men
ts:
1/4
H.P
.for
visc
osity
less
than
100
0 ce
ntis
toke
s
1/3
H.P
.for
visc
osity
gre
ater
than
100
0 ce
ntis
toke
s
• 3/
8” In
let P
ort
• 1/
4” D
isch
arge
Por
t
• S
haft
Leng
th is
3 1
/8”
long
from
mou
ntin
g fa
ce to
sha
ft en
d.
• P
ump
body
has
a fl
ange
and
a h
ub.
• M
axim
um fl
ow is
10-
40 G
.P.H
. de
pend
ing
on m
odel
.
14.4
4
4.72
4.88
31
R SERIES SERVICE SAVER FUEL UNITS
Available in both single-and two-stage models,Webster's service saver fuel units are rated to capaci-ties of 80 gph. Featuringthe unique Webster rotaryfilter, simple flange mount-ing, and an extendedshaft length, the R Seriesis adaptable to virtuallyevery replacement need.
FUEL UNITSPECIFICATIONSR Series Fuel UnitsCapacities to 80 gphSingle- and T wo-StageModels
Capacities:R Series models are rated to 80 gph at 100 psi with #2fuel oil.
Pressure:Built in pressure regulator.Factory set at 100 psi (supply pumps set at 20 psi).
Speed:1425,1725,2850 or 3450rpm.
Rotation:Clockwise (D Style) or counterclockwise (C Style) whenviewed from shaft end.
Porting:1 /8” NPTF: side location nozzle port if pump code endsin 3 or 4.1 /4” NPTF: side location nozzle port if pump code endsin 13 or 14.1 /4” NPTF: 2 inlets, gauge port and top and bottomreturns.
Shaft:7/16 x up to 3.69” extension from mounting face, keydrive.Stepped shafts turned to 5/16” at coupling end.
Seal: Mounting:Double lip type. Two bolt flange.
Filter: Self cleaning rotary type - internal. NOTE: External filter recommended with each installation.
Maximum Inlet Vacuum:Single-stage units - 10” HgTwo-stage units - 15” Hg
U.L. Listed to 72 gph:To assure compliance with National Fire ProtectionAssociation's Bulletin 31, “Installation of Oil BurningEquipment,” fuel unit inlet pressure should not exceed3 psig.
32
SE
LE
CT
ION
TA
BL
E —
SIN
GL
E S
TA
GE
Max
imu
mV
aria
ble
No
zzle
&W
atta
ge
Su
ctio
nD
im “
X”
Slo
ttin
gN
ozz
leR
ated
Req
uir
emen
tG
ear
Mo
del
Typ
eS
ee p
g. 3
4C
od
eC
uto
ff@
Rat
ed p
si@
100
psi
Pre
ssu
re@
Rat
ed p
siC
apac
ity
1R11
13.
13”
1,2
Yes
5 G
PH
8 G
PH
150P
SI
60 W
atts
20 G
PH
310
GP
H12
GP
H
1R15
13.
13”
1Y
es8
GP
H8
GP
H10
0 P
SI
50 W
atts
20 G
PH
1R12
23.
13”
3Y
es12
GP
H15
GP
H30
0PS
I14
0 W
atts
30 G
PH
1R16
23.
13”
5,6,
15Y
es
7 G
PH
9 G
PH
125
PS
I70
Wat
ts30
GP
H
1R21
33.
75”
1Y
es21
GP
H23
GP
H15
0 P
SI
110
Wat
ts50
GP
H
21R
150
3.13
”5
Yes
5 G
PH
5 G
PH
100
PS
I55
Wat
ts30
GP
H
21R
211
3.13
”3
Yes
25 G
PH
26 G
PH
150P
SI
105
Wat
ts45
GP
H
21R
221
3.13
”3
Yes
21 G
PH
26 G
PH
300P
SI
195
Wat
ts45
GP
H
Rec
om
men
ded
Max
. F
ire
Siz
e
1R M
od
els:
Sin
gle
Sta
ge
1725
RP
M
21R
Mo
del
s:S
ing
le S
tag
e,34
50 R
PM
33
31R
121
3.13
”4
Yes
4 G
PH
9 G
PH
300
PS
I90
Wat
ts20
GP
H
41R
221
3.13
”14
No
18 G
PH
22 G
PH
300P
SI
160
Wat
ts40
GP
H41
R22
13.
13”
4Y
es23
GP
H28
GP
H30
0PS
I22
5 W
atts
55 G
PH
*To
Con
vert
to h
orse
pow
er,
mul
tiply
wat
ts X
.001
3410
31R
Mo
del
s:S
ing
le S
tag
e14
25 R
PM
41R
Mo
del
s:S
ing
le S
tag
e,28
50 R
PM
34
SE
LE
CT
ION
TA
BL
E —
TW
O-S
TA
GE
Max
imu
mV
aria
ble
No
zzle
&W
atta
ge
Su
ctio
nD
im “
X”
Slo
ttin
gN
ozz
leR
ated
Req
uir
emen
tG
ear
Mo
del
Typ
eS
ee p
g. 3
4C
od
eC
uto
ff@
Rat
ed p
si@
100
psi
Pre
ssu
re@
Rat
ed p
siC
apac
ity
2R11
13.
75”
1Y
es5
GP
H8
GP
H15
0PS
I75
Wat
ts35
GP
H3
10 G
PH
12 G
PH
2R12
13.
75”
3Y
es7
GP
H12
GP
H30
0 P
SI
125
Wat
ts35
GP
H
2R12
23.
75”
3Y
es12
GP
H15
GP
H30
0 P
SI
145
Wat
ts50
GP
H
2R18
13.
75”
4N
o 15
GP
H—
80 P
SI
55 W
atts
35 G
PH
2R16
23.
75”
5Y
es7
GP
H9
GP
H12
5 P
SI
85 W
atts
50 G
PH
2R21
34.
25”
3Y
es26
GP
H27
GP
H15
0PS
I13
0 W
atts
70 G
PH
13,1
4N
o29
GP
H30
GP
H
2R22
34.
25”
3Y
es20
GP
H27
GP
H30
0PS
I21
0 W
atts
70 G
PH
13,1
4N
o23
GP
H30
GP
H
Rec
om
men
ded
Max
. F
ire
Siz
e
2R M
od
els:
Two
Sta
ge
1725
RP
M
35
2R22
34.
25”
4N
o30
GP
H—
20 P
SI
60 W
atts
70 G
PH
2R25
34.
25”
14N
o30
GP
H30
GP
H10
0 P
SI
100
Wat
ts70
GP
H2R
283
4.25
”4
No
30 G
PH
—80
PS
I90
Wat
ts70
GP
H2R
343
4.25
”13
No
34 G
PH
—45
PS
I70
Wat
ts70
GP
H2R
616
5.75
”13
, 14
No
62 G
PH
66 G
PH
150
PS
I24
5 W
atts
125
GP
H2R
626
5.75
”14
Np
50 G
PH
66 G
PH
300
PS
I41
0 W
atts
125
GP
H2R
636
5.75
”4
No
72 G
PH
—20
PS
I10
5 W
atts
125
GP
H2R
656
5.75
”14
No
66 G
PH
66 G
PH
100
PS
I19
5 W
atts
125
GP
H2R
686
5.75
”4
No
65 G
PH
—80
PS
I17
5 W
atts
125
GP
H2R
618
5.75
”14
No
75 G
PH
80 G
PH
150
PS
I32
5 W
atts
125
GP
H2R
628
5.75
”14
No
60 G
PH
80 G
PH
300
PS
I53
5 W
atts
125
GP
H
*To
Con
vert
to h
orse
pow
er,
mul
tiply
wat
ts X
.001
3410
36
SE
LE
CT
ION
TA
BL
E —
TW
O-S
TA
GE
(C
ON
T.)
Max
imu
mV
aria
ble
No
zzle
&W
atta
ge*
Su
ctio
nD
im “
X”
Slo
ttin
gN
ozz
leR
ated
Req
uir
emen
tG
ear
Mo
del
Typ
eS
ee p
g. 3
4C
od
eC
uto
ff@
Rat
ed p
si@
100
psi
Pre
ssu
re@
Rat
ed p
siC
apac
ity
22R
210
3.75
”3
Yes
15 G
PH
15 G
PH
150
PS
I90
Wat
ts45
GP
H
22R
220
3.75
”3
Yes
12 G
PH
15 G
PH
300
PS
I14
5 W
atts
45 G
PH
14N
o14
GP
H15
GP
H
22R
250
3.75
”5
Yes
5 G
PH
5 G
PH
100
PS
I70
Wat
ts45
GP
H
22R
211
3.75
”3,
4Y
es25
GP
H26
GP
H15
0 P
SI
130
Wat
ts70
GP
H14
No
26 G
PH
27 G
PH
22R
221
3.75
”3
Yes
21 G
PH
26 G
PH
300
PS
I22
0 W
atts
70 G
PH
14N
o23
GP
H27
GP
H22
R32
24.
25”
14N
o34
GP
H40
GP
H30
0 P
SI
300
Wat
ts10
5 G
PH
22R
613
4.75
”13
No
63 G
PH
65 G
PH
150
PS
I26
0 W
atts
135
GP
H22
R62
34.
75”
14N
o56
GP
H65
GP
H30
0 P
SI
425
Wat
ts13
5 G
PH
Rec
om
men
ded
Max
. F
ire
Siz
e
22R
Mo
del
s:Tw
o S
tag
e34
50 R
PM
37
32R
111
3.75
”3
Yes
8 G
PH
9 G
PH
150
PS
I65
Wat
ts30
GP
H32
R12
13.
75”
3,4
Yes
4 G
PH
9 G
PH
300
PS
I10
5 W
atts
30 G
PH
32R
213
4.25
”3
Yes
23 G
PH
25 G
PH
150
PS
I11
5 W
atts
60 G
PH
32R
223
4.25
”4
Yes
14 G
PH
25 G
PH
300
PS
I18
0 W
atts
60 G
PH
32R
626
5.75
”14
No
36 G
PH
51 G
PH
300
PS
I34
5 W
atts
105
GP
H42
R12
03.
75”
4Y
es9
GP
H13
GP
H30
0 P
SI
120
Wat
ts40
GP
H42
R21
13.
75”
3Y
es20
GP
H21
GP
H15
0 P
SI
110
Wat
ts60
GP
H42
R22
13.
75”
3,4
Yes
17 G
PH
21 G
PH
300
PS
I18
0 W
atts
60 G
PH
42R
613
4.75
”14
No
47 G
PH
48 G
PH
150
PS
I22
0 W
atts
110
GP
H42
R62
34.
75”
14N
o44
GP
H48
GP
H30
0 P
SI
360
Wat
ts11
0 G
PH
42R
624
4.75
14N
o65
GP
H74
GP
H30
0 P
SI
42R
626
5.75
14N
o72
GP
H84
GP
H30
0 P
SI
NO
TE
S:
Oil
burn
er n
ozzl
es a
re r
ated
at 1
00 p
si.
Any
incr
ease
in fu
el u
nit
pres
sure
ove
r 10
0 ps
i will
incr
ease
the
fire
size
abo
ve n
ozz
le r
atin
g. T
o as
sure
com
plia
nce
with
NF
PA
's B
ulle
tin 3
1, “
Inst
alla
tion
of O
il B
urni
ng E
quip
men
t,” fu
el u
nit p
ress
ure
shou
ld n
ot e
xcee
d 3
psig
.
*To
Con
vert
to h
orse
pow
er,
mul
tiply
wat
ts X
.001
3410
32R
Mo
del
s:Tw
o S
tag
e14
25 R
PM
42R
Mo
del
s:Tw
o S
tag
e28
50 R
PM
38
R SERIES FUEL UNITS — CODE ANALYSIS
A F1R - Single Stage -1725 RPM Bypass Plug Access
21R - Single Stage -3450 RPM -Left hand inlet (from front)2R - Two Stage -1725 RPM
22R - Two Stage -3450 RPM31R - Single Stage -1425 RPM G41R - Single Stage -2850 RPM Design Series32R - Two Stage -1425 RPM Shaft Seal Type42R - Two Stage -2850 RPM Face Lip
ERotation and Porting-As viewed from Shaft EndA Clockwise Nozzle Port LeftB CCW Nozzle Port RightC CCW Nozzle Port LeftD CW Nozzle Port Right
Rotation and Nozzle Location
R Series Fuel Units are available in standard C Style models(counterclockwise rotation, nozzle port on left, as viewed fromshaft end) or D Style models (clockwise rotation, nozzle port onright, as viewed from shaft end).
Some special models are available with A Style porting (clock-wise rotation, nozzle port on left) and B Style porting (counter-clockwise rotation, nozz le port on right) Consult SalesDepartment for availability.
FUEL UNITS (CROSS REFERENCE)Webster Model No. Suntec Model No.21R150D*4A5 JA2BB-10021R150D*4A5 JA2BB-30021R150D*4A5 JB2BB-10021R150D*4A5 JJ2BB-30021R221D-4C3 J2BA-10021 R221D-4C3 J2BB-1001R162D*4BK5/21 R150D*4A5 J2BB-300
Recommended only when bottom of tank is above fuelunit, unless pump code ends in 15.
1. Remove BYPASS PLUG if installed, through applica-ble INLET PORT.
2. Connect inlet line to preferred INLET PORT andNOZZLE PORT to NOZZLE SYSTEM.
3. Plug all unused ports securely.
4. Start burner and bleed all air from the system byopening VENT PLUG. Close VENT securely when oilflow in tube is clear , if pump is equipped with specialvent plug. Secure GAUGE PORT PLUG on units not soequipped when oil appears leaking out.
Two-Pipe Installation
1. Insert BYPASS PLUG if not installed, through appli-cable INLET PORT.
2. Connect inlet line to preferred INLET PORT andNOZZLE PORT to NOZZLE SYSTEM
3. Connect return line to preferred RETURN POR T.
4. Plug all unused ports securely.
5. Start burner. Two-stage pumps will self-vent. If singlestage and code ends in3 or 4, bleed all air from systemby opening VENT PLUG. Close VENT securely whenoil flow in tube is clear, if pump is equipped with specialvent plug. Secure GAUGE PORT PLUG on units not soequipped when oil appears leaking out.
Mounting for One-Pipe Systems
Gravity Feed Systems (Diagram A)—Fuel-units may bemounted in any position including shaft up and shaftdown. See Positions 1 through 4.
Non-Gravity Feed Systems (Diagram B) — R SeriesFuel Units may only be mounted upright, Position 1; orrotated 90° with nozzle down, Position 2. Other mount-ing positions are not recommended.
DIAGRAM A - ONE PIPE, GRAVITY FEED SYSTEM
43
Mounting for Two-Pipe Systems
Fuel units may be mounted in any position includingshaft up and shaft down. See Positions 1 through 4.
Illustrations show port locations for C Style units (coun-terclockwise rotation); D Style units (clockwise rotation)are the opposite of that pictured.
Installation diagrams shown for reference only .Compliance to applicable codes is the responsibility ofinstaller.
POSITION 1Upright,Nozzle Right:
All One pipe orTwo Pipe Systems
POSITION 2Rotated 90°Nozzle Down:
All One Pipe orTwo Pipe Systems
POSITION 3Rotated 180°Nozzle Left:
All Two Pipe Systems,or One Pipe GravityFeed Systems Only
DIAGRAM B - ONE PIPENON-GRAVITY FEED SYSTEM
44
Replacing A Style and B Style Units
Discontinued A Style and B Style R Series fuel unitscan be replaced with minimal changes in most installa-tions. Fuel unit model code numbers and rotationarrows are stamped on the top of the body casting.
In two-pipe systems and in one-pipe, gravity feed sys-tems, current C Style and D Style units can be mount-ed in any position to facilitate easiest piping.
In one-pipe,non-gravity feed systems (where themounting positions are limited), an extra length of pipeor tubing must be connected to the nozzle line to reachthe fuel unit nozzle port. See previous page for permit-ted mounting positions.
Preferred installation calls for use of flare tube fittingson al I connections. Be certain all plugs and connec-tions are secure and leak-tight.
POSITION 4Rotated 270°Nozzle Up:
All Two Pipe Systems,or One Pipe GravityFeed Systems Only
Body StylesA (CW) & C (CCW)(LH Nozzle, Viewed
From Shaft End)
Body StylesB (CCW) & D (CW)(RH Nozzle, Viewed
From Shaft End)
To Vent Pump:Loosen Gauge Port Plug
For Use as Gauge Port:Remove Plug to install
1/4” Pipe Threaded Gauge
Pumps WithoutSpecial Vent Fitting
45
Typical Replacement Installations
Replace A Style units (clockwise rotation, nozzle port onleft, as viewed from shaft end) with D Style units (clock-wise rotation, nozzle port on right, as viewed from shaftend).
Standard A Style Installation:One or Two Pipe System
Replacement with D style,Rotated 180°: One Pipe, Gravity
Feed System: or Two Pipe System
Replacement with D style,Nozzle Line Extended: One Pipe,
Non-Gravity Feed System
46
Replace B Style units (counterclockwise rotation, noz-zle port on right, as viewed from shaft end) with C Styleunits (counterclockwise rotation, nozzle port on left, asviewed from shaft end).
Standard B Style Installation:One or Two Pipe System
Replacement with C style,Rotated 180°: One Pipe, Gravity
Feed System: or Two Pipe System
Replacement with C style,Nozzle Line Extended: One Pipe,
Non-Gravity Feed System
47
IMPORTANT: Do not loosen or try to tighten any pumpplugs not to be used in the installation. NON-HARDEN-ING OIL PIPE DOPE IS RECOMMENDED for use onthe threads of all fittings. Paste must be used with careto prevent deposits on critical internal areas of thepump damage. Do not use teflon tape. EVIDENCE OFTEFLON TAPE USE WILL BE CAUSE TO VOID WAR-RANTY.
Installation Notes:
If the pump doesn't work, check for air leaks.
If you're experiencing the following problems;poor cutoff, noisy operation, erratic fire, check forair leaks.
❏ Return line must be submerged
❏ Check all fittings
❏ Check all joints
❏ Check optional inlet plugs
❏ DO NOT use compression fittings
90% of start-up problems are due to air leaks in the suc-tion line . . . so check ✔ and double check ✔ ✔ for airleaks.
“Fuel unit inlet pressures should not exceed 3 psig inorder to comply with National Fire ProtectionAssociation's Bulletin 31.”
Nozzle port pressure at cutof f is not less than 80% ofset pressure unless unit has blank nozzle or pump codeends in 13 or 14 (no cutof f).
To assure maximum performance, INLET VACUUM,measured at unused INLET PORT, should not exceed10” Hg on single-stage pumps or 15” Hg on two-stagepumps.
48
1R00 SERIES SINGLE-STAGE TRANSFER PUMPS
BODY STYLE C & D
Rated at capacities up to 66 gph at 100 psi, the 1R00Series features the versatili ty of the R Series design.With 2 inlet ports, 4 discharge ports, and 1 gauge/ventport, the 1R00 Series can fit virtually all installations.
FUEL UNIT SPECIFICATIONS
Single-Stage Transfer Pumps lR00 Series Pumps
Capacities:1R003-4EH—31 gph at 100 psi 1R004-4EH, 4EG—43 gph at 100 psi1R006-4EH—66 gph at 100 psi.
Pressure:No internal pressure regulator.
Speed: Rated at 1725 rpm.
Rotation:D Style—Clockwise when viewed from shaft end.C Style—Counterclockwise when viewed from shaft end.
Porting:1/4” NPTF: gauge/vent port, 2 inlets and 4 dischargeports.
Shaft:7/16” diameter, key drive.EH units have 1-7/8” shaft extension from mountingface. EG unit has 3-1/8” shaft extension from mountingface with outboard ball bearing.
Seal: Mounting:Double lip type. Hub or two bolt flange mount.
U.L. Listed:To assure compliance with National Fire ProtectionAssociation's Bulletin 31, “Installation of Oil BurningEquipment,” fuel unit inlet pressure should not exceed3 psig.
Operation
The 1R00 Series pumps do not incorporate an internalregulating valve or filter. They are intended for transferuse up to 100 psi and must not be operated withblocked outlet. Use one-pipe installation only and donot remove bypass plug.For maximum performance inlet vacuum, when meas-ured at unused inlet port, should not exceed 10” Hg.
49
R SERIES FUEL UNITS — CODE ANALYSIS
A F1R - Single Stage -1725 RPM Bypass Plug Access
21R - Single Stage -3450 RPM * Right hand inlet 2R - Two Stage -1725 RPM (from front cover)
22R - Two Stage -3450 RPM -Left hand inlet (from front)31R - Single Stage -1425 RPM G41R - Single Stage -2850 RPM Design Series32R - Two Stage -1425 RPM Shaft Seal Type42R - Two Stage -2850 RPM Face Lip
ERotation and Porting-As viewed from Shaft EndA Clockwise Nozzle Port LeftB CCW Nozzle Port RightC CCW Nozzle Port LeftD CW Nozzle Port Right
Rotation and Nozzle Location
R Series Fuel Units are available in standard C Style models(counterclockwise rotation, nozzle port on left, as viewed fromshaft end) or D Style models (clockwise rotation, nozzle port onright, as viewed from shaft end).
1ROO Series units are rated for 1725 rpm and may behub or flange mounted. Standard EH units have 1-7/8”shaft extension. EG units 3-1/8” shaft extension, plus out-board ball bearing.
50
Dim
ensi
on
sD
raw
ing
show
s ga
uge
port
loca
tion
for
D S
tyle
uni
ts. C
Sty
le u
nits
are
the
oppo
site
of t
hat p
ictu
red.
51
BODY STYLE C
“C” ROTATION DIRECTION
Do NotUse
This Port
Discharge Port #11/4” Pipe Thread
Inlet Port #21/4” Pipe Thread
Discharge Port #31/4” Pipe Thread
Inlet Port #11/4” Pipe Thread
DischargePort #4
1/4” Pipe Thread
Discharge Port #2To vent pump loosengauge port plug,or any unuseddischarge port.
For use asgauge portremove plug toinstall 1/4” pipethreaded gauge
BODY STYLE D
“D” ROTATION DIRECTION
OPPOSITE OF THAT PICTURED
(See rotation arrow on top
of pump to confirm shaft
rotation direction)
INSTALLATION DATA
1. Connect preferred inlet to tank through suitable linefilter.
2. Connect preferred discharge port to external regula-tor or distribution system.
3. For initial priming it is desirable to loosen the gaugeport plug or any unused discharge port to bleed air fromthe supply line and pump. Tighten the plug securelywhen oil flows clear.
Failure to prime pump may be due to “dry pump” condi-tions. Remove vent plug and fill pressure cavity slowlyto allow oil to “wet” the gears.
4. Be certain all plugs and connections are secure andleak-tight
Checking for Air Leaks
Be certain all plugs, fittings and joints are secure andairtight. Many problems in fuel unit installations resultfrom air leaks in the suction line.
Measure inlet vacuum during operation at an unusedinlet port. An abnormally low vacuum reading may indicatean air leak. Generally, assume 0.75 inch of vacuum forevery foot of vertical lift, plus frictional tubing losses andother in-line restrictions.
52
V SERIES HIGH DELIVERY FUEL PUMPS
The V Series is designed to meet the high deliveryrequirements of commercial, industrial, and institutionalsystems with a minimum of mechanical and hydraulicnoise. Single-stage models can provide a firing rate upto 270 gph at up to 10” Hg inlet vacuum. Two-stage fir-ing rates are as high as 205 gph up to 15” Hg inlet vac-uum. Field adjustable integral regulating valves factorypre-set for 100 and 150 psi operation are offered as anoption to meet specific system requirements.
Single Stage
Two Stage
53
FUEL UNIT INSPECTIONS
Single- and Two-Stage Fuel-Units
V SeriesHigh Capacity Fuel and Transfer Pumps
Capacities:Single-stage units: up to 180 gph with #2 oil, to 270 gphwith 1000 SSU oil.Two-stage units: up to 145 gph with #2 oil, to 205 gphwith 1000 SSU oil
NOTE: See rating table for capacity at specific pres-sure and rpm
Pressure:V02: Rated pressure 300 psi—factory set at 150 psi. V05: Rated pressure 100 psi—factory set at 100 psi. V08: Rated pressure 80 psi—factory set at 20 psi. V00: No internal regulation.
Speeds:1725 or 3450 rpm.
Rotation: D Style—clockwise when viewed from shaft end. C Style—counter clockwise when viewed from shaft end.
Shaft:DM Style—7/16” x 3 5” extension from mounting face.DO Style—7/16” x 1.88” extension from mounting face.
Seal:Double lip type.
Mounting:Hub or two bolt flange mount.
Filter:No internal filter. External Line filter recommended.
Maximum Inlet Vacuum:Single-stage units: 10” HgTwo-stage units: 15” Hg
U.L. Listed
54
SE
LE
CT
ION
TA
BL
EN
OT
E:
Max
. R
ecom
men
ded
Firi
ng R
ates
app
ly a
t 10”
Hg
for
sing
le-s
tage
uni
ts a
nd 1
5” H
g fo
r tw
o-st
age
units
Sh
aft
1725
3450
1725
3450
1725
3450
1725
3450
1725
3450
V05
& V
02 S
erie
s S
ing
le-S
tag
e F
uel
Pu
mp
s (w
ith
Inte
rnal
Reg
ula
tio
ns)
V05
2_-4
D_2
040
7565
135
6513
5.2
5.3
3.2
5.7
55.
13V
056_
-4D
_20
130
—19
0—
190
—.5
0—
.75
—5.
13V
022_
-4D
_20
2060
5012
050
120
.50
.75
.50
1.0
5.13
V02
3_-4
D_2
040
105
8018
580
185
.50
1.00
.50
1.5
5.13
V02
4_-4
D_2
060
140
110
240
110
240
.75
1.5
.75
2.0
5.13
V02
6_-4
D_2
095
—15
5—
155
—1.
0—
1.0
—5.
13V
028_
-4D
_20
115
—19
0—
190
—1.
5—
2.0
—5.
672V
022_
-5D
_20
2060
5012
010
020
5.5
01.
0.5
01.
55.
672V
023_
-5D
_20
4010
580
185
140
270
.75
1.5
.75
2.0
6.17
2V02
4_-5
D_2
060
—11
0—
200
—.7
5—
1.0
—6.
712V
026_
-5D
_20
95—
155
—25
0—
1.5
—1.
5—
7.75
Max
. R
eco
md
.F
irin
gR
ate
gp
h34
SS
U
Max
. R
eco
md
.F
irin
gR
ate
gp
h10
00S
SU
Inle
t L
ine
Siz
ing
Gea
r S
et C
apac
ity
gp
h34
SS
U t
hru
1000
SS
U
Rec
om
men
ded
Mo
tor
h.p
.34
SS
U
100
0 S
SU
Dim
.A
100
psi
Rat
ings
300
psi
Rat
ings
300
psi
Rat
ings
55
V00
Ser
ies
Sin
gle
-Sta
ge
tran
sfer
(w
ith
no
inte
rnal
Reg
ula
tio
n
V00
2_-4
D_
4585
7014
070
140
.25
.25
.25
.50
5.13
V00
3_-4
D_
7014
010
020
510
020
5.2
5.2
5.2
5.7
55.
13V
004_
-4D
_95
175
140
270
140
270
.25
.25
.25
.75
5.13
V00
6_-4
D_
145
—20
0—
200
—.2
5—
.50
—5.
13V
08 S
erie
s S
ing
le-S
tag
e T
ran
sfer
Pu
mp
s (w
ith
Inte
rnal
Reg
ula
tio
n)
V08
6_-4
D_2
013
5—
190
—25
0—
.33
—.7
5—
7.75
2V00
Ser
ies
Tw
o-S
tag
e Tr
ansf
er P
um
ps
(wit
h n
o In
tern
al R
egu
lati
on
)
2V00
6_-5
D_
145
—20
0—
250
—.3
3—
.75
—7.
75
2V08
Ser
ies
Su
pp
ly P
um
ps
(wit
h In
tern
al R
egu
lati
on
)
2V08
6_-5
D_4
135
—19
0—
250
—.5
0—
1.0
—7.
75
*O
pera
ting
pres
sure
to 3
00 p
si p
erm
issi
ble
(usi
ng e
xter
nal r
egul
atin
g va
lve)
V00
Ser
ies
gph
and
hp r
atin
gs a
t 10
0 ps
i sam
e as
V05
rat
ings
abo
ve.
V00
Ser
ies
gph
and
hp r
atin
gs a
t 30
0 ps
i sam
e as
V02
rat
ings
abo
ve.
**O
pera
ting
pres
sure
to 3
00 p
si p
erm
issi
ble
(usi
ng e
xter
nal r
egul
atin
g va
lve)
2V00
Ser
ies
gph
and
hp r
atin
gs a
t 30
0 ps
i sam
e as
V02
rat
ings
abo
ve.
Ava
ilabl
e in
CW
and
CC
W r
otat
ion.
20 p
siR
atin
gs*
80 p
siR
atin
gs*
20 p
siR
atin
gs**
80 p
siR
atin
gs**
56
APump SeriesVO—Single-Stage2VO—Two-Stage
BRated Typ. Adj.
Pressure Pressure RangeCode (psi) (psi)
0 No Valve —5 100 85-1202 300 125-3308 80 15-85
CGear Size Code Nom. Thickness
2 1/43 3/84 1/26 3/48 1
DBodyStyle Rotation Nozzle
C CCW LeftD CW Right
NOTE: Nozzle location andshaft rotation determinedviewing unit from shaft end.
E.No. Design Series1 Initial Design3 2-Stage, Inlet Gear One Size
Larger than Pressure Gear4 Single-Stage, Seal Pressed in Body5 Same as 3 Ex. Seal Pressed/Body
F. GCust. Code Shaft Ext. Pump Operation
DM 3-1/2 V-Guide, One Slot, No CutoffDO 1-7/8 No Number for Transfer Pumps
Rotation and Nozzle Location
V Series Fuel-Units are available in standard C StyleModels (counterclockwise rotation, nozzle port on left,as viewed from shaft end) or D Style Models (clockwiserotation, nozzle port on right, as viewed from shaft end.
V SERIES CODE ANALYSIS
HARDENED GEARS —H J71—MFG. DATE CODE
V0 2 6 C 1 00 30
A B C D E F GROTATION
57
C S
tyle
Sho
wn
Cou
nter
cloc
kwis
eR
otat
ion
Bod
y S
tyle
DC
lock
wis
e R
otat
ion
Opp
osite
of t
hat P
ictu
red
C =
MO
TO
R L
EN
GT
HD
= O
VE
RA
LL
DIM
EN
SIO
NA
or
E =
V O
R R
PU
MP
DIM
EN
SIO
N
58
INSTALLATION DATA
V Series pumps are shipped from the factory set fortwo-pipe operation. They are not recommended for usein one-pipe systems (except series V00, see Note 1).
IMPORTANT: Do not loosen or try to tighten any pumpplugs not to be used in the installation. NON-HARDEN-ING OIL PIPE DOPE IS RECOMMENDED for use onthe threads of all fittings. Teflon tapes or paste must beused with care to prevent depositing tape pieces orfibers into critical internal areas of the pump. Reducedtorques must be used with teflon materials to avoidthread or casting damage. EVIDENCE OF TEFLONMATERIAL IN INTERNAL AREAS OF THE FUEL-UNITWILL BE CAUSE TO VOID WARRANTY.
Installation
1. Connect inlet line to preferred INLET PORT. Use ofinlet in cover is recommended for minimum inlet vacu-um loss. Connect nozzle line to nozzle port.
2. Connect return line to preferred RETURN POR Texcept on V00 pumps. Use of bottom return is recom-mended to minimize back pressure. Top return port notrecommended for oil heavier than #2.
3. Plug all unused ports securely.
4. Start burner. Two-stage and most one-stage pumpswill self-vent. V00 with shut-off valve in nozzle line mayhave to be vented manually by loosening GAGE PORTplug. Tighten plug securely when oil flows clear.
Installation Notes:
“Fuel unit inlet pressures should not exceed 3 psig inorder to comply with National Fire ProtectionAssociation's Bulletin 31.”
To assure maximum performance, INLET VACUUM,measured at unused INLET PORT, should not exceed10” Hg on single-stage pumps or 15” Hg on two-stagepumps.
NOTE: Max Recommended Firing Rates apply to 10”Hg for single-stage units and 15” Hg for two-stage units.
59
60
B SERIES FUEL OIL TRANSFER PUMPS
B Series transfer pumps are designed to provide ef fi-cient pumping of #1 to #6 fuel oils in capacities from 80to 290 gallons per hour, at pressures up to 500 psi (#1to 300 psi). With high-density gray iron body construc-tion, heat-treated alloy steel gears and shafts, andheavy-duty needle bearings, B Series transfer pumpsoffer superior durability and high mechanical ef ficiencyDouble lip V iton seals, are standard. B Series pumpsare available in—clockwise (right hand) or counter-clockwise (left hand) rotations. All B Series transferpumps are U.L. listed.
61
SPECIFICATIONS
B SeriesFuel Oil Transfer Pumps
Capacity:80 to 290 gph at 1725 rpm and 100 psi (#1 to #6 fueloil). 160 to 520 gph at 3600 rpm and 100 psi (#1 to #6fuel oil).
Pressure:#4 to #6 fuel oils up to 500 psi, #2 fuel to 350 psi.
Speed:For direct or belt drive application up to 3600 rpm.
Rotation: Clockwise rotation viewed from shaft end.
Porting:1/2” NPTF: side inlet and side outlet ports. (18B, 37B,47B)3/4” NPTF: Side inlet and side outlet ports (59B)
SELECTION TABLEPump Capacity at 100 psiwith #2 Fuel Oil at 75°F.
1750 rpm
Pump Input
Model* hp gph
18B .14 80
37B .21 155
47B .30 220
59B .45 290
62
PSI300
200
100
25
25300
PSI300
200
100
25
25300
18B
37B
63
PSI300
200
100
25
25100300
PSI300
200
100
25
25300
47B
59B
64
INSTALLATION AND DIMENSIONAL DATA
Single-Rotation Models
Connect discharge and suction lines to NPTF portsdepending on desired direction of shaft rotation.Direction of shaft rotation is always toward dischargeport.
CAUTION: Do not attempt to operate pump with dis-charge port blocked.
Correct shaft rotation is shown by arrow stamped onback of pump. Do not attempt to operate pump in oppo-site direction. Use an external regulating valve in discharge line ifpressure regulation is necessary.
Installation Notes:
“Fuel unit inlet pressure should not exceed 3 psig inorder to comply with National Fire ProtectionAssociation's Bulletin 31“
To assure maximum performance, INLET VACUUM,measured at unused INLET PORT, should not exceed10” Hg on single-stage pumps.
CODE DIM “A” DIM “B”
18B 3.36 2.66
37B 3.71 3.02
47B 4.05 2.13
59B 4.40 2.30
2.123
1.00
1.35
500
1.87
.44
.5000
A
B
65
SUPPLY PUMP UNITSWebster can of fer pump sets in a variety of combina-tions. Webster will mount any of our low speed pumpheads to any motor type. Available in simplex, duplexmanual and duplex automatic configurations. See thecode breakdown below.
Sup
ply
Pum
p an
d M
otor
Cod
e B
reak
dow
n
Exa
mpl
es:
SP
M-5
0AT
2R21
3 or
SP
MB
-50A
T59
BR
or
SP
MV
-100
BT
086K
-DA
Bas
ic P
refix
Sup
ply
Pum
p &
Mot
or
SP
M
Pum
p H
ead
Ser
ies
No
Lette
r-Sta
ndar
d
B-V
-No
Lette
r
Das
hM
otor
HP
.25=
1/4
hp
500=
5 hp
.25
- 50
0
Mot
or P
hase
Vol
tage
A=
1 ph
ase
B=
3 P
hase
X=
Spe
cial
Vol
tage
50 o
r 60
cy.
A,
B o
r X
Mot
orE
nclo
sure
TE
FC
, O
PD
PE
Exp
losi
onP
roof
T, O
or
E
Das
hW
ebst
er
Pum
pH
ead
P/N
Pre
fix
Pum
p #
No
Lette
r or
Bla
nk =
Sim
plex
DA
- D
uple
xA
utom
atic
DM
- D
uple
x M
anua
l
Bla
nk,
DA
or
DM
66
C = Motor LengthD = Overall DimensionA or E = V or R Pump Dimension
SPM with a “V” or “R” Series Pump HeadSINGLE SUPPLY UNIT using a 56C Frame Motor
C S
tyle
Sho
wn
Cou
nter
cloc
kwis
e R
otat
ion
Bod
y S
tyle
DC
lock
wis
e R
otat
ion
Opp
osite
of t
hat P
ictu
red
67
SUPPLY PUMP UNITSGENERAL INFORMATION
Locating Units
Install transfer/supply units in a clean, dry , well-ventilatedlocation as close to the storage tank as possible. Closeinstallation will minimize required vacuum and will allowsmallest diameter piping to be used while assuring an ade-quate supply of oil.
The units can be mounted in any position. Preferred posi-tion for convenient line connect ions is horizontal with footmounts down.
Filter or Strainer
A reliable in-line filter or strainer is recommendedbetween the tank and the supply pump. Filter or strain-er capacity must at least equal the suction gear capac-ity of the pump to minimize restriction in the suction line.
Oil Safety Valves
Oil safety valves, mounted close to the burner assembly, iso-late burner fuel pumps from supply line pressures. The oilsafety valve relieves pressure strain on burner pump seals,and prevents tank siphoning and spilling caused by acci-dental line breaks. To assure compliance with National FireProtection Association's Bulletin 31, “Installation of OilBurning Equipment,” burner fuel pump inlet pressure shouldnot exceed 3 psig. The Webster OSV Series valves satisfythis requirement when properly installed.
An optional mesh strainer, rated for maintained system pres-sure, can be installed before each OSV near the burnerassembly to protect the OSV from harmful scale which mayoccur in black iron pipe.
Tee fittings should also be inserted on the supply side ofeach OSV in the system. This will allow a pressure readingto be taken when setting system pressure.
Measuring Inlet Vacuum
When installation is complete,the compound gauge should beused to measure inlet vacuum. For maximum performance, vacuum when measured atunused inlet port duringoperation should not exceed15” Hg on the two-stageSPM supply pumps.
A vacuum reading greaterthan 15” Hg indicates inadequate oilsupply, which could be a result of excessive vertical lift,undersized tubing, a plugged or unders ized filter or strainer,sticking check valves, or a frozen, kinked or otherwiserestricted suction line.
68
SPM SERIESFEATURES
SPM Series pump/motor units consist of a fuel pumpdirect coupled to a motor . an integral check valve andcombination vacuum/pressure gauge. They aredesigned to supply fuel oil from a central storage tank toremote heating units or auxiliary tanks.
SPM pumping units were developed to supply fuel oil toone or more overhead furnaces, day tanks, or for under-ground central distribution. Four pump/motor sizes areavailable, with capacities of 15, 30, 65 and 135 gph (57,114, 245 and 510 1/hr).1/6 hp,1/4 hp and 1/3 hp (124 W,186 W and 248 W) motors are split phase available foreither 115 or 230 volt operation. 1/2 hp (373 W) motorsare capacitor start—induction run, totally enclosed withdual 115/230 volt windings. The units are shipped com-pletely assembled and include a gauge and check valve.All are 60 cycle, 1750 rpm, continuous duty.
An abnormally low vacuum reading may indicate an air leak inthe suction line, valves, or fittings. Generally , assume 0.75” ofvacuum for every foot of vertical lift, plus frictional tubing losses,and other in-line restrictions.
When installing fuel units, to assure compliance with NationalFire Protection Association's Bulletin 31, “Installation of OilBurning Equipment,” fuel unit inlet pressures should not exceed3 psig.
69
DUPLEX PUMP UNITS SPM SERIESFEATURESThe SPM duplex models consist of two pump/motorassemblies with a pre-piped, common discharge mani-fold. One pump/motor unit operat es continuously, withthe second providing backup service if the main pumpfails. Either automatic (SPM-DA models) or manual(SPM-DM models) controls are available.
The duplex automatic series are designed specificallyfor buildings where a constant supply of oil must beassured ... hospitals, apartment buildings, schools andother commercial/industrial buildings
The DA Series is equipped with a pressure sensingdevice which detects a loss in pressure of the primarypump. If the standby pump is brought into service, analarm sounds which indicates a malfunction in the pri-mary pump.
The electric control circuit on the duplex automaticpump set is equipped with a lead-lag switch to permitmanual alternation of pump to provide even wear oneach pump.
The manually operated duplex pump sets of fer thesame protection as an automat ic except the standbypump must be turned on manually which requires thatmaintenance personnel always be available.
70
SUPPLY UNIT SPECIFICATIONS
SPM Series Supply Units
Single and Duplex
Capacities:15, 30, 65, and 135 gph
Pressure:Maximum operating pressure to 80 psi or 200' of head.
Motors: All motors are 60 cycle, 1750 rpm, continuous duty, 48Nframe, 1/6, 1/4, 1/3 hp: split phase, 115 or 230 volt oper-ation, 1/2 hp: capacitor start/induction run, TEFC, dual115/230 volt.
Pumps:SPM 15, 30, and 65: uses W ebster “2R” Series pumpunits.SPM 135: uses the Webster ʻ2V” Series pump unit.Webster 2R and 2V are UL listed
Porting:SPM 15, 30, 65:
1/4” NPTF—2 inlets, outlet port and top and bottom returns
Filter:Rotary self cleaning type, except in SPM 135. Use ofexternal line filter recommended.
Valves:Pressure regulating assembly in pump maintains set pressure.Check valve maintains oil in feeder lines for instantstarts.
Gauge:2-1/2” dia., calibrated from 30” vacuum to 100 psi.
Controls: Two Types for Duplex Units Only Duplex automatic withlead-lag switch and alarm. Manual with selector switch.
Maximum Inlet Vacuum:All units—15” Hg
National Fire Protection Association compliancerequires fuel inlet pressure not to exceed 3 psig.
NEMA 1Enclosure
71
SE
LE
CT
ION
TA
BL
EM
od
els
and
Des
ign
Dat
a T
able
1M
ax F
low
Max
.W
atts
@ m
in.
Max
Flo
wP
um
pM
oto
rM
oto
rH
ead
Val
ve A
dj.
@ 8
0p
si@
80
psi
S
uct
ion
Mo
del
Mo
del
Typ
eV
olt
age
hp
ft*
Ran
ge
psi
gp
hg
ph
Cap
.N
o.
SP
M-1
5-1
Sin
gle
115
SP
M-1
5-2
Sin
gle
230
SP
M-1
5-1-
DA
Dup
lex-
Aut
o.11
51/
620
0'10
to
100
psi
6522
1535
2R18
1C-5
BQ
4S
PM
-15-
2-D
AD
uple
x-A
uto.
230
(351
96-5
)S
PM
-15-
1-D
MD
uple
x-M
an11
5S
PM
-15-
2-D
MD
uple
x-M
an23
0S
PM
-30-
1S
ingl
e11
5S
PM
-30-
2S
ingl
e23
0S
PM
-30-
1-D
AD
uple
x-A
uto
115
1/4
200'
10 t
o 10
0 ps
i95
4530
702R
283C
-5B
Q4
SP
M-3
0-2-
DA
Dup
lex-
Aut
o23
0(3
5196
-6)
SP
M-3
0-1-
DM
Dup
lex-
Man
115
SP
M-3
0-2-
DM
Dup
lex-
Man
230
SP
M-6
5-1
Sin
gle
115
SP
M-6
5-2
Sin
gle
230
72
SP
M-6
5-1-
DA
Dup
lex-
Aut
o.11
51/
320
0'10
to
100
psi
175
9065
125
2R68
6C-5
BQ
4S
PM
-65-
2-D
AD
uple
x-A
uto.
230
(351
96-7
)S
PM
-65-
1-D
MD
uple
x-M
an11
5S
PM
-65-
2-D
MD
uple
x-M
an23
0S
PM
-135
Sin
gle
Dua
lS
PM
-135
-DA
Dup
lex-
Aut
o.11
51/
220
0'10
to
100
psi
300
157
135
250
2V08
6C-5
D04
SP
M-1
35-D
MD
uple
x-M
an.
230
(351
96-8
)
SP
M P
umps
are
set
at 2
0 ps
i.
*E
quiv
alen
t he
ad e
qual
s ve
rtic
al h
eigh
t fro
m s
uppl
y pu
mp
disc
harg
e to
hig
hest
poi
nt in
sys
tem
, plu
s pr
essu
re d
rop
for
leng
th o
f p
ipin
g ru
n,pl
us a
dditi
onal
loss
es d
ue to
fitti
ngs.
**P
umpi
ng #
2 oi
l (34
SS
UU
). .8
5 S
p. g
r.
Su
pp
ly P
um
p U
nit
Cro
ss R
efer
ence
Web
ster
Mo
del
No
.S
un
tec
Mo
del
No
.S
PM
-15-
1 (1
725
rpm
)—
SP
M-3
0-1
(172
5 rp
m)
BH
-100
0M (
1725
rpm
)S
PM
-30-
1 (1
725
rpm
)B
B-1
020M
(34
50 r
pm)
SP
M-3
0-1
(172
5 rp
m)
BH
-103
0H (
3450
rpm
)S
PM
-65-
1 (1
725
rpm
)B
H-1
001M
(17
25 r
pm)
SP
M-6
5-1
(172
5 rp
m)
BH
-107
0M (
3450
rpm
)S
PM
-135
(17
25 r
pm)
For
hig
her
capa
citie
s, c
onsu
lt fa
ctor
y
73
INSTALLATION DATA
Compound Gauge0-30” Hg0-100 psi
Check Valve
Discharge Port1/4” Pipe Thread
This PortNever Used
Pressure AdjustingScrew 1/8” Allen
Head Socket UnderSeal Screw
SPM-135 Models
Preferred Cover Inlet1/2” Pipe Thread
Return Port3/8” Pipe Thread
OptionalReturn Port1/4” PipeThread
Inlet Port #21/4” PipeThread
Return Port1/4” PipeThread
Inlet Port #11/4” Pipe ThreadAccess to 1/8”Bypass Plug
74
Containment basin optional
Pressure Adjusting Screw1/8” Allen Head SocketUnder Seal Screw
Pump 1 Running Light
Pump Selector Switch
Fault Light
Pump 2 Running Light
Test Button
Control Circuit Reset
Discharge Port1/2” Pip Thread
Compound Gauge0-30” Hg0-100 PSI
Common Discharge Manifoldwith Integral Check Valves
Return Port1/4” Pipe Thread
Inlet Port1/4” Pipe Thread
1/2” D.4 Mounting Holes
Wiring for intermittent operation
75
|
5”
|C
9.20
”
Dim
ensi
on
s
Mo
del
AB
CD
SP
M-1
56.
8815
.50
——
SP
M-3
07.
4416
.13
——
SP
M-6
58.
9619
.50
——
SP
M-1
3510
.94
21.7
0*
7.75
*21
.70
*SP
M-1
35 3
PH
AS
E
SP
M-3
PH
AS
E
76
Mo
del
AP
ipe
Tap
SP
M-1
5-D
A14
.94
1/4
SP
M-3
0-D
A16
.53
1/4
SP
M-6
5-D
A16
.90
1/4
SP
M-1
35-D
A21
.37
3/8
Dim
ensi
on
sD
up
lex
Au
tom
atic
34.5
77
Mo
del
AP
ipe
Tap
SP
M-1
5-D
M14
.94
1/4
SP
M-3
0-D
M16
.53
1/4
SP
M-6
5-D
M16
.90
1/4
SP
M-1
35-D
M21
.37
3/8
Dim
ensi
on
sD
up
lex
Man
ual
78
INSTALLATION DATA
SPM Single and Duplex Manual Models
SPM Single and Duplex Manual units are capable ofsupplying fuel oil to heating units or tanks located up to200 feet above the supply pumps. They are designedfor use in maintained pressure or open loop systems.Pump pressures can be set at a range from 10 psi to100 psi. See Correct Supply Line Size charts, for maxi-mum discharge head.
Tank to Pump Connections
Connect suction line from the tank to preferred supplypump inlet port. Connect return line from pump returnport to tank. Internal 1/8" bypass plug (factory installed)must be in position for recommended two-pipe opera-tion. Be certain all plugs and connections are secureand leak tight.
The correct suction line size can be determined byreferring to the charts. Generally, the return line shouldbe sized the same as the suction line. Check valves inthe suction lines between the tank and SPM unitsassure that pumps are full of oil, ready for service.Check valves must be oil tight. Low pressure dropswing type are recommended to minimize friction loss.
For SPM Duplex Manual models, preferred installationcalls for a separate suction line from tank to pump foreach pump/motor unit. If system failure occurs becauseof a gross leak in the suction line of the primary unit, thesecond unit can still provide backup service. Checkvalves can be installed in return lines to allow removalof inactive pump for servicing, while primary pump con-tinues to run.
These typical installation diagrams, illustrating a main-tained pressure supply system or optional open loopsystem, for continuous pump operation, are shown forreference only. Compliance to all applicable codeswhere installed is the sole responsibility of the installer .
79
*R
equi
red
if op
tiona
l ret
urn
loop
is n
ot u
sed
+N
ot s
uppl
ied
by W
ebst
er
+
+*
+
+ +
80
SPM Duplex Automatic Models
SPM Duplex Automatic units consist of two SPM Seriespump/motor assemblies and an electrical control panel.They are designed for use in maintained pressure sup-ply systems only. if system pressure falls below a pre-set level, the control automatically switches from the pri-mary pump/motor unit to the secondary unit. If the backuppump/motor unit also fails to reach or maintain presetsystem pressure, the control also shuts of f the backupunit.
A pump selector switch allows the two pump/motor unitsto be manually alternated for even wear on each pump.Pump pressures can be set at a range from 10 psi to100 psi. See Correct Supply Line charts, for maximumdischarge head.
Tank to Pump Connections
Units should be set for two-pipe operation. Preferredinstallation calls for a separate suction line from tank topump for each pump/motor unit. If system failure occursbecause of a gross leak in the suction line of the primaryunit, the second unit can still provide backup service.
The correct suction line size can be determined byreferring to the charts Generally , the return line shouldbe sized the same as the suction line. Low pressuredrop, swing type check valves can be installed in thesuction lines, assuring that pumps are full of oil, readyfor service. Check valves in return lines allow removalof inactive pump for servicing. Use of shutoff valves inreturn lines is not recommended. Be certain all plugsand connections are secure and leak-tight.
+ Not supplied by Webster
+ +
81
+ + +
+
+
+
*
*R
equi
red
if op
tiona
l ret
urn
loop
is n
ot u
sed
+N
ot s
uppl
ied
by W
ebst
er
82
SPM LINE SIZINGCorrect sizing of the suction and discharge linesbetween the storage tank and supply unit is vital. Theuse of tubing or pipe which is too small can result inrestricted oil supply. The following charts are listed tohelp in line sizing for supply unit installation.
The charts can assist in determining the suggested min-imum suction and discharge line sizes for StandardSchedule 40 iron or steel pipe (IPS) and for Type K cop-per tubing, which is recommended for undergroundservice.*
To use the line sizing charts, first a supply unit must besized to meet the specific application. Once this hasbeen accomplished, the unit model number (ex. SPM-30) should be used as a guide in referring to the correctsuction and/or discharge sizing charts.
NOTE: The use of pipe or tubing which is too small cancause increased frictional losses. The result could be aninadequate system discharge pressure. Check localand state codes pertaining to oil heating systems forany requirements which may af fect the installationand/or operation of the system.
The following charts apply to all SPM Single, SPMDuplex Manual and SPM Duplex Automatic models.These charts are not intended to be used in sizing pipefor any other supply or transfer pump/motor units.
*Charts represent maximum horizontal run vs. verticallift or vertical head for Standard Schedule 40 iron orsteel pipe (lPS) and for Type K copper tubing, recom-mended for underground service. The actual OD andwall thickness are indicated for each tube size. (NOTE:The nominal size of Type K tubing is 1/8” smaller thanactual OD.)
83
RE
CO
MM
EN
DE
DS
UC
TIO
N L
INE
SIZ
ES
PM
-15
84
RE
CO
MM
EN
DE
DS
UC
TIO
N L
INE
SP
M-3
0
Suc
tion
Cha
rts
repr
esen
t max
imum
ho
rizo
nta
l ru
n v
s. v
ert
ica
l lift
fo
rS
tand
ard
Sch
edul
e 40
iron
or
stee
lpi
pe (
IPS
) an
d fo
r Ty
pe K
cop
per
tub
ing
, re
com
me
nd
ed
fo
r u
nd
er-
grou
nd s
ervi
ce.
The
act
ual O
D a
ndw
all
thic
kne
ss a
re in
dic
ate
d f
or
each
tube
siz
e. (
NO
TE
: The
nom
inal
size
of
Type
K tu
bing
is 1
/8”
smal
ler
than
act
ual O
D.)
85
RE
CO
MM
EN
DE
DS
UC
TIO
N L
INE
SIZ
ES
PM
-65
86
RE
CO
MM
EN
DE
DS
UC
TIO
N L
INE
SP
M-1
35
Suc
tion
Cha
rts
repr
esen
t max
imum
ho
rizo
nta
l ru
n v
s. v
ert
ica
l lift
fo
rS
tand
ard
Sch
edul
e 40
iron
or
stee
lpi
pe (
IPS
) an
d fo
r Ty
pe K
cop
per
tub
ing
, re
com
me
nd
ed
fo
r u
nd
er-
grou
nd s
ervi
ce.
The
act
ual O
D a
ndw
all
thic
kne
ss a
re in
dic
ate
d f
or
each
tube
siz
e. (
NO
TE
: The
nom
inal
size
of
Type
K tu
bing
is 1
/8”
smal
ler
than
act
ual O
D.)
87
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SIZ
ES
PM
-15
88
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SP
M-3
0
Dis
char
ge C
hart
s re
pres
ent m
axi-
mum
hor
izon
tal r
un v
s. v
ertic
al li
ftfo
r S
tand
ard
Sch
edul
e 40
iron
or
stee
l pip
e (I
PS
) an
d fo
r Ty
pe K
cop
-p
er
tub
ing
, re
com
me
nd
ed
fo
ru
nd
erg
rou
nd
se
rvic
e.
Th
e
act
ua
lO
D a
nd w
all t
hick
ness
are
indi
cate
dfo
r ea
ch tu
be s
ize.
(N
OT
E:
The
nom
inal
siz
e of
Typ
e K
tubi
ng is
1/8
”sm
alle
r th
an a
ctua
l OD
.)
89
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SIZ
ES
PM
-65
90
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SP
M-1
35
Dis
char
ge
Cha
rts
repr
esen
t max
i-m
um h
oriz
onta
l run
vs.
ver
tical
lift
for
Sta
ndar
d S
ched
ule
40 ir
on o
r st
eel
pipe
(IP
S)
and
for
Type
K c
oppe
rtu
bin
g,
reco
mm
en
de
d f
or
un
de
r-gr
ound
ser
vice
. T
he a
ctua
l OD
and
wa
ll th
ickn
ess
are
ind
ica
ted
fo
rea
ch tu
be s
ize.
(N
OT
E: T
he n
omin
alsi
ze o
f Ty
pe K
tubi
ng is
1/8
” sm
alle
rth
an a
ctua
l OD
.)
91
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SIZ
ES
PM
-15-
DA
92
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SP
M-3
0-D
A
Dis
char
ge
Cha
rts
repr
esen
t max
i-m
um h
oriz
onta
l run
vs.
ver
tical
lift
for
Sta
ndar
d S
ched
ule
40 ir
on o
r st
eel
pipe
(IP
S)
and
for
Type
K c
oppe
rtu
bin
g,
reco
mm
en
de
d f
or
un
de
r-gr
ound
ser
vice
. T
he a
ctua
l OD
and
wa
ll th
ickn
ess
are
ind
ica
ted
fo
rea
ch tu
be s
ize.
(N
OT
E: T
he n
omin
alsi
ze o
f Ty
pe K
tubi
ng is
1/8
” sm
alle
rth
an a
ctua
l OD
.)
93
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SIZ
ES
PM
-65-
DA
94
RE
CO
MM
EN
DE
DD
ISC
HA
RG
E L
INE
SP
M-1
35-D
A
Dis
char
ge
Cha
rts
repr
esen
t max
i-m
um h
oriz
onta
l run
vs.
ver
tical
lift
for
Sta
ndar
d S
ched
ule
40 ir
on o
r st
eel
pipe
(IP
S)
and
for
Type
K c
oppe
rtu
bin
g,
reco
mm
en
de
d f
or
un
de
r-gr
ound
ser
vice
. T
he a
ctua
l OD
and
wa
ll th
ickn
ess
are
ind
ica
ted
fo
rea
ch tu
be s
ize.
(N
OT
E: T
he n
omin
alsi
ze o
f Ty
pe K
tubi
ng is
1/8
” sm
alle
rth
an a
ctua
l OD
.)
95
The adjusting screws on the Pressuretrol, located in thefactory wired control panel, should be set carefullyaccording to instructions, below.
Setting Pump Pressure
1. Set the differential scale indicator on the pressuretrolat approximately 5 (half-way between 10 and bottom ofscale). This permanently sets the differential scale. Setmain scale indicator at 0, so supply pump can run con-tinuously during purging of supply line.
2. Purge lines. Run both supply pumps to assure bothare oil filled. For priming purposes, OSV valves can bemanually operated by inserting a stif f wire (paper clip)through the cover hole, and depressing the diaphragmplate.
3. Pressure adjustment, pump one: Install compoundgauge in tee fitting in supply line of highest or mostremote burner. After starting pump one, start all burn-ers. With all burners operating at maximum firing rate,adjust pump one so gauge at remote burners, reads 20 psi.
4 Pressuretrol adjustment: With all burners firing, switchto pump two and adjust pump two so gauge at lastburner reads slight positive pressure (2-5 psi).Gradually increase the pressuretrol main scale settinguntil pump two stops, pump one starts, and alarmbuzzer sounds. Allow pump one to run and build pres-sure. With pump one running and pump two off, turnpump two pressure adjusting screw about one-quarterturn clockwise.
5. Pressure adjustment, pump two: Move selectorswitch to off momentarily, then back to pump two. Alarmwill shut of f and pump two will start. Adjust pump twopressure setting so it is the same as pump one (set instep three). Switch back and forth between both pumps
DifferentialScale
AdjustingScrew
Main Scale
AdjustingScrew
MainScale
Indicator
DifferentialScale
Indicator
SPM Duplex Automatic Controls
96
to confirm pressure settings are identical. Shut of f allburners. Pressure at any oil safety valve in system mustnot exceed maximum operating pressure of 60 psi,when supply pump is running and all burners are of f.
ELECTRICAL CONNECTIONS
The electrical connections between the pump/motorassemblies and control panel are made at the factory .Connect electric service to the terminal strip in the con-trol panel using conduit and wire sizes as required bylocal codes.
Control circuits operate on 1 15 volts. Always connectwhite neutral wire to Terminal 2. Never connect 230 voltsbetween Terminal L1 and Terminal 2. Green ground wirefrom power source should be connected to one of thepanel mounting screws.
Important: SPM-135-DA motors are dual voltage andare prewired for 230 volts at factory . To operate on 115volts, consult motor manufacturer 's instructions accom-panying unit for proper wiring. Before starting unit, checkmotor voltage and confirm that 115 volt motors are wiredto panel as shown in Figure One with Terminal 2 andTerminal L2 Jumper and that 230 volt motors are wiredas shown in Figure Two without Terminal 2 and TerminalL2 Jumper.
Figure 1 — 15 Volt MotorConnections
Figure 2 —230 Volt MotorConnections
97
SPMV SERIES
High Capacity AC Motor/Pump Units 430-1730 gph
Designed for high capacity applications where 430-1730 gph are required. Quiet running, gear type pumpsare available in four sizes and incorporate hardenedintegral shafts, journals and gears, special anti frictionbearings, Buna N seals, and cast iron gear plates.Standard motors ranging from 1/2 hp to 7.5 hp (373 Wto 5.6 kw) are 1725 rpm NEMA “C” face, 115 volt single-phase or 230 volt three-phase, 60 cycle type with TEFCenclosures through 2 hp (1490 W) and OPDP enclo-sures over 2 hp (1490 W).
Webster AC motor/pump high capacity fuel oil supplyunits are designed to be used with fuel oils includingJP4 whose viscosities do not exceed 6,000 S.U.S. andwith a suction less than 10” of mercury or an inlet pres-sure not to exceed 35 psi continuously (capable ofintermittent duty at 10,000 S.U.S., 20” of mercury and50 psi inlet). The unit is designed to operate in -20°F to+200°F conditions. The motor is precision aligned andcoupled to the pump with a machined adapter and flex-ible couplings.
98
SPMV DUPLEXPump/Motor Units
Available in flow rates from 430 GPH through 1730GPH. Systems can be designed for single phase115/208/230V, 60 or 50CY , or three phase208/230/460V, 60 or 50CY , applications. The SPMduplex models consist of two pump and motor assem-blies with a pre-piped common discharge manifold. Onepump operates continuously, with the second providingbackup services if the main pump fails. Either automat-ic (SPM-DA models) or manual (SPM-DM models) con-trols are available. The duplex automatic series aredesigned specifically for buildings where a constantsupply of oil must be assured...hospitals, apartmentbuildings, schools and other commercial or industrialbuildings. The duplex pump set has a second pump forstandby or auxiliary service. Furnished with automaticor manual standby controls, the duplex automatic isequipped with a pressure sensing device which detectsloss of pressure of primary pump. If standby pump isbrought into service, an alarm sounds which indicatesmalfunction in primary pump. The electric control circuiton the duplex automatic pump set is equipped with alead-lag switch to permit manual alternation of pump toprovide even pump wear . The manually operatedduplex pump sets offer the same protection as the auto-matic except the standby pump must be turned on man-ually which requires that maintenance personnel alwaysbe available.
99
SPECIFICATIONSSPMV SERIES
AC High Capacity Fuel Oil Supply Units
Capacity:430 to 1730 gph with fluid viscosity to 10,000 SSU.
Pressure:Inlet pressure should not to exceed 3 psi. Outlet pressure up to 500 psi.
Fluid Temperature Limits: -20° F to +200° F.
Motors:Standard: 60 cycle, 1750 rpm, NEMA 56C frame.1/2 through 7 1/2 hp available.To be specified when ordering: Single-phase 115/230VAC, or three-phase 230/460 VAC. ODP or TEFC.
Porting: 1” NPT (086K-194K)1 1/2 X 1 1/4 NPT (237K-388K)
Mounting: Integral mounting foot.
Maximum Inlet Vacuum: 15” HgContinuous operation: 10” HgUse of external filter recommended.
In applying these supply units, the pressures indicatedare at the pump outlet. You must also consider line losses.
All pumps relying on atmospheric pressure to push thefuel oil into them are subject to cavitation. As fuel vis-cosity (thickness) increases, the tendency for cavitationbecomes greater. Therefore, it is best to mount thepump at the base of the tank and to use the largestdiameter, shortest length, and straightest inlet possible.A large diameter inlet pipe or hose necked down at thepump is preferable to a longer length of smaller diame-ter pipe because the fuel tends to adhere to the insideof the pipe.
When initially starting a unit, it is desirable and some-times necessary to have a vent valve or plug on thepressure side of the pump to facilitate its priming.
100
SPMV PUMP CODE ANALYSIS SELECTION TABLES
SPM V - 50 A T /086K DA
Motor PumpPump TypeMotor Horsepower — Table 1
plus Table 4Motor Phase — Table 2Motor Enclosure — Table 3Pump Model — Table 4Configuration Tables
Table 1. Motor Horsepower(1725 rpm Standard)
No. Description
50 .50 hp75 .75 hp
100 1.0 hp150 1.5 hp
200 2.0 hp300 3.0 hp500 5.0 hp750 7.5 hp
Table 2. Motor PhaseCode Description
A Single-phase, 60 cycle, 115/230 VACB Three-phase, 60 cycle, 230/460 VACX Consult factory for other types
Table 3, Motor EnclosureCode Description
T TEFC std. thru 2 hpO OPDP std. over 2 hpE Explosion Proof
HP ratings shown are for No. 2 fuel oil. Consult factoryfor hp ratings for heavier weight oils. For lower flow ratesconsult Bulletin 131-49161. For higher pressures and/orflow rates, consult factory.
Dimensions for 3 PhaseDuplex AutomaticAssembly as Shown
SPMV SINGLE SUPPLY UNIT
SPMV DUPLEX AUTOMATIC SUPPLY UNIT
34.5
8.303''
9.30
104
SPMB Series Single and Duplex Supply Units
B series transfer pumps are designed to provide ef ficientpumping of #1 to #6 fuel oils, in capacities from 80 to 290gallons per hour, at pressures up to 500 PSI (except #1oil). With high-density gray iron body construction, heat-treated alloy steel gears and shafts, and special antifric-tion bearings. B series transfer pumps offer superior dura-bility and high mechanical ef ficiency. Double lip V itonseals, are standard. These pumps are also available inpump and motor packages. Available in 115/230 volt sin-gle phase or 230/460 volt three phase, simplex, duplexautomatic and duplex manual configurations. All B seriespumps are UL approved.
Capacity: 80 to 290 GPH @ 1750 RPM#1 to #6 fuel oil @ 75 degrees F.,100 PSI)
Pressures: #4 to #6 fuel oils - up to 500 PSI#2 fuel oil - up to 350 PSI
Operating Speeds: To 1725 RPM
Porting: * 1/2” NPTF: Side inlet and side outlet3/4” NPTF: Side inlet and sideoutlet 59B only
Shaft Seal: Standard - Double lip type, Viton
Filter: No internal filterExternal filter recommended
Relief Valve: No Relief Valve Use External Relief Valve
Inlet Pressure: 3 PSI MAX
Inlet Vacuum: 10” Hg maximum
UL Listed
SPMB DuplexPUMP/MOTOR UNITS
Available in flow rates from 80 GPH through 290 GPH. Systemscan be designed for single phase 115/208/ 230V, 60 or 50CY, orthree phase 208/230/460V, 60 or 50CY, applications, The SPMduplex models consist of two pump and motor assemblies witha pre-piped common discharge manifold. One pump operatescontinuously, with the second providing backup service if themain pump fails. Either automatic (SPM-DA models) or manual(SPM-DM models) controls are available. The duplex automaticseries are designed specifically for buildings where a constantsupply of oil must be assured...hospitals, apartment buildings,schools and other commercial or industrial buildings. The duplexpump set has a second pump for standby or auxiliary service.Furnished with automatic or manual standby controls, the duplexautomatic is equipped with a pressure sensing device whichdetects loss of pressure of primary pump. If standby pump isbrought into service, and alarm sounds which indicates malfunc-tion in primary pump. The electric control circuit on the duplexautomatic pump set is equipped with a lead-lag switch to permitmanual alternation of pump to provide even pump wear . The man-ually operated duplex pump sets offer the same protection as theautomatic except the standby pump must be turned on manuallywhich requires that maintenance personnel always be available.Available with either SPM or SPMV pump/motor units.
When sizing SPMB units, remember that the pressuresindicated are at the pump outlet.
All pumps relying on atmospheric pressure to push thefuel oil into them are subject to cavitation. As fuel viscos-ity (thickness) increases, the tendency for cavitationbecomes greater. Therefore, it is best to mount the pumpat the base of the tank and to use the largest diameter ,shortest length, and straightest inlet possible.
**
*
107
MOTOR HORSEPOWER (1725 RPM STANDARD)Under pressure, read
“DM,” for manual control models, or “DA,” forautomatic control models.
Example: SPMB-50AT/18BR-DA
Code Duplex Units
DM Duplex with manual controls
DA Duplex with automatic controls
4
5
A large diameter inlet pipe or hose necked-down at the pumpis preferable to a longer length of similar diameter pipebecause the fuel tends to adhere to the inside of the pipe.
When initially starting a unit, it is desireable and sometimesnecessary to have a vent valve or plug on the pressure side ofthe pump to facilitate its priming.
108
SPMB Series Single and Duplex Supply Units
DIMENSIONS
Motor
NEMA
HP Fame Type A B C
Size (Standard)
.50 56C TEFC 9.00 8.25 9.20
.75 56C TEFC 9.00 8.25 9.20
1.00 56C TEFC 9.00 8.25 10.20
1.50 56C TEFC 9.00 8.25 11.20
2.00 56C TEFC 9.00 8.25 11.20
3.00 182TC OPDP 9.63 11.05 11.00
5.00 184TC OPDP 9.63 11.05 12.40
7.50 213TC OPDP 11.63 13.00 13.90
Pump
Model E D
18BR 3.36 (.50HP) 17.06
37BR 3.71 (.75HP) 17.4147BR 4.05 (.75HP) 17.75
59BR 4.40 (.75HP) 18.10
109
SPMBSINGLE SUPPLY UNIT
SPMBDUPLEX AUTOMATIC SUPPLY UNIT
(Dimensions are for 3 Phase Duplex AutomaticConsult Factory for Single Phase Dimensions)
34.5
6.12
110
TRANSFER PUMP UNITSTransfer pumps/motors consist of an electric motor andWebster fuel unit. Each W ebster fuel unit has beendesigned for a variety of needs from fuel supply to fueltransfer. With capacities ranging from 9 to 150 gph at100 psi, Webster transfer units are capable of satisfyingvirtually every system supply or transfer need.
SPECIFICATIONS
35223 Series, 35202 Series, 49116 Series
Capacities:35223 Series—80 to 155 gph at 100 psi. 35202 Series—9 to 65 gph at 100 psi. 49116 Series—31 to 66 gph at 100 psi.
Maximum Working Pressure:35223 Series—80 to 200 psi.35202 Series—100 to 300 psi.49116 Series—100 psi
Motors:All motors 60 cycle, 1750 rpm, continuous duty 115 volt. 1/6 and 1/4 hp are split phase.1/2hp is capacitor start—induction run, TEFC with dual115/230 volt windings.
Fuel Units (Close Coupled to Motor):
35223 Series uses Websters' B Series Fuel Oil TransferUnits.35202 Series uses Websters' V Series or R Series FuelUnits.
49116 Series uses W ebsters' 1R00 Series FuelTransfer Units.
Mounting: Maximum Inlet Vacuum:Four bolt foot mount. 10” Hg vacuum.
Use of external filter recommended.
35223 SERIES TRANSFER UNITS
The 35223 Series Pump/Motor Unit consists of aWebster B Series fuel oil transfer pump close coupledto a 1/4 hp electric motor. This unit is designed for trans-fer of fuel oils #6 or lighter at maximum working pres-sures up to 200 PSI depending on motor hp.
111
SE
LE
CT
ION
TA
BL
E
3522
3 S
erie
s P
um
p/M
oto
r U
nit
sM
axim
um
Max
imu
mM
oto
rM
oto
rP
um
pW
ork
ing
Ou
tlet
Flo
wD
im. A
Mo
del
sV
olt
age
ho
Mo
del
Pre
ssu
reat
100
psi
(max
.)D
im.
B35
223-
111
51/
418
B20
0 ps
i80
gph
16.0
46.
3235
223-
311
51/
437
B10
0 ps
i15
5 gp
h16
.39
6.67
112
35202 SERIES TRANSFER UNITS
35202 Series Pump/Motor Units consist of a Webster RSeries or V Series fuel unit with integral pressure valve,close coupled to a motor . This series is available with1/6, 1/4 cr 1/2 hp electric motors with a pumping capac-ity to 65 gph at 100 psi.
113
SE
LE
CT
ION
TA
BL
E
Max
imu
mP
um
pg
ph
at
Wo
rkin
gB
lock
edM
axim
um
Su
ctio
nM
oto
rM
oto
rM
oto
rF
uel
un
itP
ress
ure
No
zzle
gp
h a
tW
ork
ing
Cap
acit
yM
od
els
Vo
ltag
eTy
pe
No
.h
pTy
pe
No
.p
siW
atts
100
psi
Pre
ssu
reg
ph
3520
211
534
499-
31/
42R
223C
-5B
Q14
300
210
3023
7035
202-
211
534
499-
11/
62R
111C
-5B
Q3
150
7512
1035
3520
2-9
Less
mot
or,i
nclu
des
acce
ssor
ies
2R21
3C-5
BQ
1415
013
030
2970
3520
2-10
Less
mot
or,i
nclu
des
acce
ssor
ies
2R61
6C-5
BQ
1415
024
565
6012
535
202-
2711
534
499-
11/
61R
162C
-4B
Q6
125
709
730
3520
2-29
115/
230
dual
3449
9-6
1/2
2R62
6C-5
BQ
1430
041
065
5012
535
202-
3511
5/23
0 du
al34
499-
61/
2V
022C
-4D
020
300
270
4020
5035
202-
3811
534
499-
81/
3V
002C
-4E
J10
017
565
6565
Abo
ve C
apac
ity in
gph
at 1
725
rpm
pum
ping
#2
fuel
oil
at 7
5°F
.N
OT
E:
3520
2-38
rat
ings
are
for
1000
SS
U fu
el.
114
|
5”
|B
1.5
9.20
”
*352
02-2
9 A
ND
352
02-3
5
Dim
ensi
on
s
Mo
del
AB
Ou
tlet
Po
rt35
202
15.6
17.
391/
4-18
NP
TF
3520
2-9*
*1/
4-18
NP
TF
3520
2-2
14.0
96.
891/
8-27
NP
TF
3520
2-27
13.4
77.
391/
8-27
NP
TF
*352
02-2
919
.45
5.75
1/4-
18 N
PT
F35
202-
10**
*352
02-3
518
.83
5.13
1/4-
18 N
PT
F
**D
imen
sion
s sa
me
as 3
5202
-29
Less
Mot
or*S
ee D
raw
ing
A
4.88
SP
M W
ITH
A “
V”
OR
“R
” S
ER
IES
PU
MP
HEA
DS
ING
LE SUPP
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US
ING
A 5
6CFR
AM
E M
OTO
R
115
49116 SERIES TRANSFER UNITS49116 Series Pump/Motor Units consist of a W ebster 1R00 Series Fuel Transfer Unit close coupled to a 1/4 hpelectric motor. This unit requires the use of an externalpressure regulating valve. The 49116 Series is capableof up to 66 gph at 100 psi.
SELECTION TABLE
DeliveryReplaces Pump Suction gphDiscount Type Capacity 100 psi
Models Model No. gph ① ①
49116 35223-19 1R003C-4EH 48 3135223-21
49116-1 35223-23 1R004C-4EH 66 4335223-25
49116-2 — 1R006C-4EH 95 66
① Capacity in gph at 1725 rpm pumping #2 fuel oil at75°F
For typical installation suggestions, please refer to theSPM Supply Pump/Motor section.
NOTE: The installation drawings contained in this serv-ice guide are intended for referenc e use only. Consultyour local heating contractor for specific installation rec-ommendations and designs which comply with the stateand local codes in your area.
116
Dim
ensi
on
s
Mo
del
AB
4911
614
.44
4.72
4911
6-1
15.0
65.
3449
116-
215
.06
5.34
117
FUEL UNIT ACCESSORIESMOUNTING ACCESSORIES
Webster oil heat product s are recommended for theirconvenience and ease of installation. Seven types ofmounting flanges, brackets, shaft sleeves and cou-plings are manufactured and stocked for use withWebster fuel units and pumps.
Complete dimension drawings are shown.
SELECTION TABLE
Dimensions
Description NumberHi-Foot Flange A45Q 1 Figure One4 Bolt Adapter Flange For Standard HUB(Nema 56CMotor Mount) 41489 Figure ThreeHorizontalMounting Flange A43Q7 Figure FourBell Housing 34330 Figure FiveAdapter For 1100013 Has MTG EARSB Pump 1100012 Figure Two
4 Bolt 56C Adapter 80316-1 Figure SixFlange for Special 2 Bolt Pump MTG
34330
11000121100013 hasMTG EARS
41489
A43Q7
A45Q180316-1
118
4.5
Figure Two-1100012
Figure Five-34330,48N Frame
Figure Four-A43Q7
Figure Six-80316 -1
119
OIL SAFETY U/L® LISTED
VALVESOIL SAFETY VALVESINSTALLATION INSTRUCTIONS
Webster OSV® valves can be used for the followingapplications which require slightly different installations:
1. Preventing tank siphoning and oil leaks in the eventof line breaks. (See Section “A”)
2. For use with a supply pump (booster pump) to pre-vent excessive pressure at the inlet of the burner fuelunit. (See Section “B”)
Many state and localcodes require a devicethat will automaticallyshut off the oil supplybefore it enters a build-ing should the linebetween the deviceand the burner be bro-ken. NFPA standardsrequire that the pres-sure at the burner fuelpumps must not exceed 3 PSI. The Webster OSV® sat-isfies both requirements when properly installed. Checklocal codes for any special requirements.
SECTION “A”
Using the OSV® valve to help prevent oil spills from bro-ken or corroded lines and fittings.
Operation
A recent Environmental Protection Agency sponsoredstudy found that most oil leaks are found in the pipingrather than the tank. Webster OSV® valves help preventoil spills by stopping oil flow in the event of line breakscaused by corroded lines or leaky fittings. The OSV® 9is mounted in the supply line as close as possible to thetank. Operation is simple. The OSV® requires a vacuumon its outlet side to open the valve and allow oil flow .When the burner is shut down, there is no vacuum fromthe fuel unit and the OSV ® valve is closed—oil flow isstopped. When the burner starts up, vacuum from thefuel unit opens the OSV®, allowing oil to flow.If a corroded broken line or a loose fitting causes a leakto develop between the OSV® and burner, air enters theline. Fuel unit vacuum is reduced and the OSV® will notopen, preventing tank siphoning and a major spill.
BIO OIL SAFETY VALVE UPGRADEOSV38 and OSV50Webster currently has an Oil Safety V alve for Bio andWaste Oil applications. This valve is U/L listed for BioFuel and is compatible with a wide range of other fuelssuch as B20-B100, #1-#2 Fuel Oil, Diesel, Kerosene andWaste Oil, with a Temperature Range of -40 to 140ºF.
120
INSTALLATION
The OSV® should be mounted on the supply line asclose to the tank as possible.
CAUTION: DO NOT mount the OSV® more than threefeet above the fuel unit inlet or more than three feetabove the lowest point in the fuel line connecting theOSV® to the burner fuel unit.
See Figures 1 & 2 below.
Figure 2. Mobile Home Gravity System
Failure to observe the above caution will compromisevalve action and may result in tank siphoning action inthe event of a line failure between tank and burner .
TROUBLESHOOTING
The OSV® valve will not open during fuel unit operationif there is any air leak in the system between OSV® andburner that prevents development of the operationalvacuum required. (See Table 1).
If there is no oil flow to burner or prime is lost
A. Check to see if OSV® valve is stopping oil flow. Turnon burner and manually depress OSV ® diaphragmplate with paper clip to see if burner fires up.
121
1. Check system vacuum.Use a vacuum gauge at fuel unit inlet side. Run burner and shutoff. Vacuum should be maintained. Loss of vacuum indicates air leak.
2. Check all above ground fittings and line for air leaks.3. Conduct a pressure check of the line.4. If line does not maintain pressure, the line probably
has a break and needs replacing.B. If there is no oil flow even when OSV® valve is manually
opened then check filter, shut-off or foot valve or tank.CAUTION: Always disconnect the OSV® when blowingout the lines with compressed air or damage to thevalve will result.NOTE: Outside installation may not be suitable wherethe OSV® would be exposed to temperatures belowfreezing.
Dimensions & Specifications
Standard Model use prefix “OSVA”BIO Model use prefix “OSV”The BIO OSV valve is U/L listed for Bio Fuel and is com-patible with a wide range of other fuels such as B20-B100, #1-#2 Fuel Oil, Diesel, Kerosene, Diesel andWaste Oil.Temperature Range -40 to 140 Degrees F
SECTION “B”For use with a supply pump (booster pump) to preventexcessive pressure at the inlet of the burner fuel unitOperation/InstallationWebster Oil Safety Valves provide important protectionin oil burner supply systems with pressurized supplylines. By isolating burner fuel units from supply linepressure sources (a supply pump or overhead tank, forexample), the OSV® relieves pressure strain on fuel unitinlets and seals.
For this application, the OSV ® is installed close to theburner assembly. A sustained vacuum at the outlet sideof the OSV®, generated by fuel unit operation, causesthe valve to open.
Port Sizes3/8 and 12 NPTF
122
The OSV® operates as a pressure reducer, with supplyline pressure on the valve inlet side and fuel pump vac-uum on the valve outlet side.
In systems with burners connected for one-pipe opera-tion, GPH flow through the valve is the same as theburner nozzle firing rate. In two pipe operation, GPHflow through the valve is the same as the fuel unit suc-tion capacity. Refer to fuel unit manufacturer's specifi-cation for inlet suction capacity . Operation of OSV ®
valves in parallel is not recommended.Recommended Maximum Flow Rates and Pressure
Tbl.1 OSV® 38 and OSV® 50
PSI PSI PSI PSI PSI PSI5 15 30 40 50 60
1 gph 2.5 2.7 3.5 4.5 5.0 5.515 gph 2.7 3.0 4.0 5 0 5.5 6.032 gph 3.7 4.0 4.7 5.2 6.0 7.045 gph 4.0 4.5 5.0 6.0 7.055 gph 4.5 5.0 5.760 gph 5.0 5.2 6.0 Do not operate70 gph 5.5 6.0 in this region
Vacuum (inches Hg) to operate valve is shown for vari-ous flow and pressure conditions.
Values given are averages of test results and may varyslightly.
Entrapment Caution
In supply systems having a check valve on the supplypump discharge, an entrapment condition may existbetween the supply pump and OSV®. In the burner OFFcondition, cold oil in the line expands when heating toroom temperature, causing a line pressure increase thatmay prevent the OSV ® from operating, or may causeleakage at the threaded joints. The condition may beobserved by use of a pressure gauge at the inlet side ofthe OSV®, or on the discharge side of the supply pumpcheck valve. Correction requires use of a pressure reliefvalve as shown in Figure 3, set to insure a maximum 60PSI at any OSV® inlet under all conditions.
Figure 3. Supply Pump Systems — Multi Level
Inlet PressureFlowthru
Valve
123
OPEN LOOP SYSTEM
To insure a flooded supply line, a standpipe before thejunction of the supply line with the return line is required.The standpipe on the supply line must be at least threefeet higher than any point in the supply line systembefore joining the return line. Use of a W ebster 48598vacuum breaker is recommended.
Figure 4. Central Supply Systems tor Mobile HomesGENERAL CONSIDERATIONS
PORTING CONNECTIONS
The OSV® valve is installed in the supply line betweenthe tank and burner. Its location depends on the appli-cation (see sections A & B). The OSV® “IN” port is con-nected to the tank side. The OSV® “OUT” port is con-nected to the burner side of the line. Non hardeningpipe dope is recommended for use on the fittingthreads. Do not use teflon tape, as it may void all war-ranties.
MOUNTING
The OSV® can be mounted in any position. In thoseenvironments where dirt or moisture is particularly aproblem, the preferred position is with the cover down.This allows any moisture from the diaphragm area todrain out the manual access hole.
FILTER
A dependable in-line filter is recommended between thetank and OSV® to help assure optimum valve perform-ance. Dirt on the valve s eat area could prevent thevalve from sealing tightly.
PRIMING
For priming purposes, the OSV® can be manually oper-ated by inserting a paper clip or stif f wire through themanual access hole, and depressing the diaphragmplate. Remove the wire immediately if oil appears at thefuel unit vent, the burner fires up, or there is any sign ofoil at the burner fuel unit.
CHECK LOCAL CODES
The installer is responsible for complying with all appli-cable codes. Typical installation diagrams are shown forreference only.
124
REGULATING VALVES FOROIL HEATING SYSTEMSRV SERIES
Webster RV Series valves are designed to provide fueloil pressure regulation in oil heating applications suchas transfer or supply pump systems or high firing capac-ity burners. RV valves will handle #1 through #6 gradefuel oil in rated pressures ranging from 20 to 500 psi(1.4 to 34.5 bar). RV-2100 Series models regulate pres-sure for capacities to 150 gph (568 I/hr) and R V-3000Series valves regulate pressure to 600 gph (22701/hr).RV-2000 models regulate pressure and also providedelivery cutoff for capacities to 100 gph (3781/hr).
RV-2000 RV-3000RV-2100
SPECIFICATIONS
RV-2000
For all fuel oils, #1 through #6. Combines pressure reg-ulation and cut-of f. Chrome plated piston valve andimproved composition sealing disc resist corrosion;gives positive seal and sharp, clean cut-off. Capacitiesto 100 gph.
RV-2100
Same as RV-2000 except does not have delivery cut-off. Pressure regulating only. Capacities to 150 gph.
RV-3000
Same as RV-2100 except capacities to 600 gph.
125
126
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LE
CT
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001
100-
165
100
100†
RV
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atin
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100-
330
100
100†
RV
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110
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102
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100-
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150
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104
80-1
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025
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50-3
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ve50
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600
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RV
-300
250
-220
600
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RV
-300
310
-55
600
10†
RV
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1-4
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cial
100-
165
150
150*
RV
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2-4
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ing
100-
330
150
150†
RV
2102
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10
0-33
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0-33
015
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C10
0-33
015
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104-
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alve
s80
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150
100*
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NO
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INSTALLATION DATA
128
Relief Valve Installation
ToTank
Pressure Pressure
ToTank
RV-2000
The RV-2000 series regulating valve can also be usedas a relief valve. Designed to provide system pressurerelief for #1 through #6 fuel oil grades and for ratedpressure ranges of 0 to 500 psi. @150 gph or less. Thefollowing adjustment ranges are available 100-330 psiuse RV-2002, 10-25 psi use R V-2003, 40-110 psi useRV-2004. Pipe as configured.
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INSTALLATION DATA
2' to 4'
VACUUM BREAKER (48598)Incorporates Viton “O” Ring seat, 3/8-18 NPTF ports.Can be used as a suction line check valve.
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TroubleshootingGENERAL PUMP PROBLEMS
• Noisy pump• Pump will not prime• Rumble coming from burner at start-up• Oil leaking from pump cover gasket or blown cover
gasket• Pump looses prime after an extended shutdown• Vacuum coming from return port on oil pump (two
pipe installation)• Pump seizes at start-up, blows seal, damage to
discharge pressure gauge• Supply unit does not run • Unit runs but no oil reaches supply pump • Unit supplies oil to distribution system, but no
delivery of oil at OSV valves• Oil delivery at OSV valves, but burners do not fire • Burner pump seal damaged • Pressure increases in supply line after shutdown • Oil Safety Valve does not open
Noisy pump
Check for air leaks
Check for high vacuum condition, (10 in. for singlestage and 15 in. for two stage pumps)
Pump will not prime
Measure suction inlet vacuum, should not exceed15 in. of vacuum
Check that all plugs and suction line connections areairtight
Be certain by-pass plug is in position on two pipeinstallation
Use adequate size suction line
Be certain suction line filter or strainer has adequatecapacity
Rumble coming from burner at start-up
Check cutoff at pump or external solenoid
Oil leaking from pump cover gasket(s) blown covergasket(s)
Check for correct pump rotation
Pump looses prime after an extended shutdown
Check all pipe connections for air leaks
Return line not submersed in oil
In supply pump applications the return loop mayneed a vacuum breaker installed to prevent siphoning
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Vacuum coming from return port on oil pump(two pipe installation)
By-pass plug not installed
If by-pass plug is installed check for blockedsuction line
Pump seizes at start-up. blows seal. damageto discharge pressure gauge
Check for blocked return line or drain port from pump
By-pass plug should be removed on single pipeinstallation
SUPPLY PUMP PROBLEMS
Supply Unit does not run
Check motor electrical connections
Check for obstruction in return line such as a reversedcheck valve
Check circuit breaker and correct possible overload
Unit runs. but no oil reaches supply pump
Measure suction inlet vacuum, should not exceed 15 in. of vacuum
Check that all plugs and suction line connections areairtight
Be certain by-pass plug is in position
Use adequate size suction line
Be certain suction line filter or strainer has adequatecapacity
Unit supplies oil to distribution system, but no deliveryof oil at OSV valves
Confirm specified unit can provide needed vertical discharge pressure
Check that all supply line connections are air andoil tight
Use adequate size supply line
Minimize supply line restrictions
Prime pump and purge supply lines of air
Check pump pressure settings
Oil delivery at OSV valves. but burners do not fire
Confirm specified unit can provide needed capacity(Size to firing rate for single pipe burners or size togear set capacity for two piped burners)
In pressurized system, adjust pressure to develop areading of 10-15 PSI at the most remote or highestburner
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In open loop system, install standpipe, back pressurevalve, vacuum breaker or over-sized drop pipe
Check to assure that pressures at OSV inlet does notexceed maximum of 60 PSI
Check for leaking or damaged OSV
Check for line failure between OSV and burner pump
Check burner for fuel pump failure or ignition problems
Burner pump seal damaged
Install OSV to assure pressure at burner pump doesnot exceed 3 PSI
Install pressure relief valve if entrapment condition issuspected
Pressure increases in supply line after shutdown
Check to assure that pressures at OSV inlet does notexceed maximum of 60 PSI
Install pressure relief valve if entrapment condition issuspected
OIL SAFETY VALVE PROBLEMS
Oil Safety Valve does not open
Too much pressure at inlet of valve
Flow exceeds recommended flow rate for valve.
Entrapment condition (expansion of oil in supply line)
Check for air leaks between the OSV valve and burnerpump
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MANUFACTURERS REPSWebster and its Representatives have the resourcesand technical background to answer any installation orservice questions you may have.
Please refer to the listing below for the W ebsterRepresentative near you.
SHANE MILLER STATESG. MILLER CO. IN / IL / MN / WI901 River Lane KY / ND / SDLoves Park, IL 61111Tele: 815-964-5692 Fax: 815-964-5770Cell: [email protected]
MONS KING STATESETC SALES, INC. DE / MD / VAPO Box 235 E.PA / NJPaoli, PA 19301Tele: 610-296-3527 Fax: 610-640-4271Cell: [email protected]
