for Evaporator Temperature Control - Sporlan OnlinePage6/BULLETIN90-20 disc at the port of the valve...

May 2007 / BULLETIN 90-20

for Evaporator Temperature Control

ORIT-6

ORIT-PI

SORIT-12

®

Page 2 / BULLETIN 90-20

Evaporator Pressure Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Valve Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Direct Acting Valves – ORIT-6 & ORIT-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Pilot Operated Valves – (S)ORIT-12, (S)ORIT-15, & (S)ORIT-20 . . . . . . . . . . . . . . 5

Pilot Operated Valves – (S)ORIT-PI-2, -3, -4, & -5 . . . . . . . . . . . . . . . . . . . . . . . . . 6

FactoryValve Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Selection Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Specifications & Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Direct Acting Valves – ORIT-6 & ORIT-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Pilot Operated Valves – (S)ORIT-12, (S)ORIT-15, & (S)ORIT-20 . . . . . . . . . . . . . .11

Pilot Operated Valves – (S)ORIT-PI-2, -3, -4, & -5 . . . . . . . . . . . . . . . . . . . . . . . .12

CapacityTables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Quick Pick SelectionTables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 & 15

Table of Contents

FOR USE ON REFRIGERATION and/or AIR CONDITIONING SYSTEMS ONLYBulletin 90-20, May 2007, supersedes Bulletin 90-20, November 2001, 90-20-1, August 1991,

90-20-2, January 1996, and 90-20-2A, January 1999 and all prior publications.

© Copyright 2007, Parker Hannifin Corporation, Washington, MO

ORIT-6 ORIT-PIORIT-15 SORIT-12

BULLETIN 90-20 / Page 3

Evaporator Pressure RegulationSporlan Evaporator Pressure Regulating valves (EPRs) aredesigned to provide an economical means of accuratelymaintaining evaporator pressure and temperature undervarying evaporator loads. The primary function of an EPRis to prevent the evaporator pressure from falling below apredetermined value or setting. A consistent evaporatingtemperature is maintained at the valve setting as evaporatorloads decrease. When the evaporator load increases, thevalve Opens on a Rise of Inlet pressure above its setting.

Controlling evaporator temperature, by maintaining the sat-uration pressure of the refrigerant in the evaporator, pro-vides more consistent evaporator temperature than aconventional thermostat or suction pressure cut-out control.These methods of control allow the evaporator pressure todecrease as the load drops off; lowering the evaporator tem-perature and decreasing evaporator performance, whileincreasing evaporator frost build up.

Sporlan offers three types of evaporator pressure regulatingvalves, covering applications from small spot coolers tolarge multiplex supermarket systems. The ORIT-6 andORIT-10 EPRs are direct acting and offered with standardadjustment ranges and fitting options. The (S)ORIT and(S)ORIT-PI pilot operated EPRs provide more capacity atlower pressure drops, and offer additional features includ-ing solenoid shut off for defrost applications.

ApplicationSporlan evaporator pressure regulating valves are used inmany applications to provide:

• Consistent evaporator pressures and temperatures (dur-ing decreasing load conditions) for excellent systemtemperature control.

• Allowmultiple evaporator systems to operate at differenttemperatures when piped to a common suction group.

These applications are categorized as single evaporator ormultiple evaporator systems.

Single evaporator/single compressor systems:There are many single evaporator systems which utilizeEPRs for precise evaporator temperature control (see Figure1). However, there are several factors to consider. Propervalve selection is critical. Since pressure drop in the suctionline is lost efficiency, EPRs are commonly oversized toreduce suction line pressure drop. Single evaporator sys-tems can allow as little as 2 psi drop across direct actingEPRs (0.5 psi drop across SORIT and 1.0 psi drop acrossSORIT-PI pilot operated EPRs,) and still maintain accept-able control. Severely oversized valves can cause pressurehunting and negatively impact temperature control.

In addition, special consideration must be given to singlecompressor systems. In these applications the suction pres-sure can drop to an undesirably low level as the EPR throt-tles to maintain the evaporator pressure. In these cases, adischarge bypass valve must be used to maintain acceptablecompressor suction pressure. These valves are typicallypiped with the valve outlet feeding the suction line down-stream of the EPR. Special considerations must be taken toprotect the compressor from overheating when using a dis-charge bypass valve. These considerations and the applica-tion of the discharge bypass valve are discussed further inSporlan Bulletin 90-40. Bypassed discharge gas can beintroduced at the inlet of the evaporator or upstream of theevaporator pressure regulator to maintain a minimum suc-tion pressure. But, the discharge bypass valve must beexternally equalized, and the external equalizer connectionmust be downstream of the evaporator pressure regulator.

Multiple evaporator systems:Many supermarket applications use multiple evaporatorspiped to a common suction header (see Figure 2). Theseevaporators can be operated at different temperatures for thevarious products being refrigerated. This is the most com-mon application for pilot operated EPRs. Any group ofevaporators where the desired saturation temperature ishigher than the saturation temperature corresponding to thecommon suction pressure will require an EPR. For exam-ple, if evaporator A in Figure 2 is designed for -10°F (24.0psig for R404A), and evaporator B for -20°F (16.0 psig), anEPR would be used to maintain evaporator A at the 24.0psig setting. In addition, if the common suction at the com-pressors was set for -30°F (10.0 psig) then an EPR wouldalso be required on evaporator B. In many applications,EPRs are installed with every evaporator group to act as asuction stop solenoid valve for defrost while still maintain-ing the flexibility to set the evaporator saturation pressure ifnecessary. As with the single evaporator applications,

TEV

ORIT

SORIT-PI

See•All

DistributorEvaporator

Condenser

AccessValve

Receiver

External Equalizer

Catch-All

Condenser Receiver

®

®Figure 1


proper valve selection will always yield the optimum per-formance under all operating conditions (See selection pro-cedure for more detail).

Loop Systems:On these systems, the evaporator groups are piped to a com-mon liquid and suction trunk line “looped” throughout thestore. EPRs are installed in or near the case on loop systems.Sporlan direct acting ORITs and the internally piloted(S)ORIT-PIs are recommended for loop systems requiringEPRs. Externally piloted (S)ORITs are not recommended,as high pressure vapor is required to operate the valve.

DualTemperature Applications:Dual temperature applications allow a supermarket to oper-ate a refrigerated display case at either low or medium tem-perature to meet the promotional needs of the store.Typically a refrigerated display case (or cases) applied inthis manner would be piped to the low temperature suctiongroup.

Direct acting ORIT-6 and -10 EPRs are used in theseapplications with a solenoid valve in parallel (seeEvaporator C, Figure 2). If a normally closed solenoid valveis used, energizing the coil will bypass the EPR and allowthe case to pull down to the common suction pressure. De-energizing the coil will return control to the EPR. Someapplications with ORI-6 or -10s use a normally open

solenoid in parallel to allow the system to “fail-safe” in lowtemperature mode. In these applications energizing the coilwill cause the valve to close, diverting refrigerant flow tothe EPR. The EPR will then control the evaporator at thehigher pressure setting.

Pilot Operated EPRs are wide open in the low temperatureoperating mode and can be electrically switched to controlat the valve set point. The (S)ORIT-PIE internally pilotedEPRs are offered with an optional Electric open featuredesigned specifically for these applications. In addition the(S)ORIT-PIE can be installed at the rack, or in the case,since a high-side pilot connection is not necessary.Operation details of the electric open feature of the(S)ORIT-PIE are covered on Page 7. The (S)ORIT highpressure piloted EPRs can be converted for dual tempera-ture applications by installing an A3/E3 solenoid valve inthe high pressure vapor pilot line.

Defrost Applications:Most refrigeration applications require occasional defrost-ing of the evaporator to maintain proper performance andtemperature control of the refrigerated space. There are sev-eral means of defrosting the evaporator including off-time,electric heat, and gas defrost. The SORIT and SORIT-PIEPRs are equipped with a suction stop solenoid feature thatwill close the valve when de-energized to assist with any ofthese methods of defrost. In the case of gas defrost, high

TEV

TEV

ReplaceableCatch-All See•All

Liquid LineSolenoidValve

Liquid LineSolenoidValve withCheck ValveFeature(CE Series)

Check Valve

Check Valve

Check Valve

Distributor

Distributor

Def

rost

Hea

der

Suct

ion

Hea

der

Compressors with Replaceable Suction Filter and Oil Level Control

2-Way Solenoid Defrost Valve

2-Way Solenoid Defrost Valve

SORIT Valve

10 psig -30°F

Liquid Header

SuctionDischarge

OilLiquid

Evaporator B

TEV

Liquid LineSolenoid Valve

Distributor

2-Way Bypass Solenoid Valve for Dual Temperature Operation or SORIT-PIE

ORIT Valve

SORIT-PIValve

Evaporator C

Evaporator A

Normal Condenser

PIPING KEY

Receiver

Suct

ion

Hea

der

24 psig -10°F

16 psig-20°F

Figure 2

R404A


pressure vapor is usually introduced upstream of the EPR,and the SORIT or SORIT-PI solenoid stop feature is used toprevent the defrost gas from entering the suction line andoverheating/overloading the compressors.

Some gas defrost applications require reverse flow throughthe EPR. The SORIT-PI internally piloted EPRs will allowreverse flow of defrost gas through the valve. This allowsthe valve to be installed in the refrigerated display case or inthe store piping trench on gas defrost systems without addi-tional check valve piping. The SORIT-PI suction stop sole-noid coil must be de-energized for proper reverse flowoperation.

Paralleling Evaporator Pressure Regulators:If the system capacity is greater than the largest EPR modelavailable for the application, like model and size valves canbe applied in parallel. The valve should be selected for halfthe system capacity to provide the proper selection, andboth valves adjusted to control the same setting. This willensure that the pressure drop across each valve is the same.

Piping Suggestions:The piping schematics used in this bulletin are for illustra-tion purposes only to demonstrate general location of theevaporator pressure regulating valve in the system. Sporlanrecommends that recognized piping references be consultedfor assistance in piping procedures. Sporlan is not responsi-ble for system design, any damage resulting from faultysystem design, or for the misapplication of its products.Sporlan reserves the right to void the product warranty if theproduct is not applied as described in this bulletin.

Refrigerants:Sporlan evaporator pressure regulating valves can beapplied with any of the commonly used CFC, HCFC, andHFC refrigerants. None of the Sporlan EPR products aresuitable for R717(Ammonia).

Valve OperationUnderstanding valve operation of Sporlan’s different EPRmodels is critical to ensuring proper product selection for eachapplication. Each model offers unique features that providedistinct benefits for various applications where these productscan be used. All Sporlan EPRs are applied at the outlet of theevaporator and control evaporator or valve inlet pressure only.To indicate this trait, the valve nomenclature describes valveoperation as Open on Rise of Inlet pressure or ORI.

For pressure regulating valves to modulate closed or open,requires a change in the pressure being regulated by thevalve. The amount of change in valve stroke, for a givenchange in pressure, is the valve gradient. Every valve has

a gradient designed to provide the best possible operation.Valve sensitivity or “gain” relates to how the valve reactswith the system and how well it controls the regulated pres-sure. Valve gain is a function of both the valve gradient andthe valve capacity. The more “over-sized” a valve and the“steeper” the gradient, the more sensitive or higher the gainwill be, and the more the flow will change with a change ininlet pressure. Generally speaking, a more sensitive valvewill provide closer control of the inlet pressure. However, agrossly oversized valve can cause hunting and fluctuatingsystem pressures. Direct acting models require more valvegradient to fully stroke the valve, and are generally moresensitive to over-sizing than the pilot operated models.

Valve setting is defined as the minimum control pressure,or the opening inlet pressure of the valve. Below the settingthe valve will close and stop refrigerant flow until the valvesetting is reached. As inlet pressure increases above thevalve setting, the valve will open at the rate of the valve’sgradient, to provide more flow.

Direct ActingValves - ORIT-6 and ORIT-10:These models control inlet pressure only and have no otheroptional modes of operation. As illustrated in Figure 3, theoutlet pressure (P3) is exerted against both the bellowseffective area and the outlet side of the seat disc. Since theeffective area of the bellows is equal to the area of the valveport the outlet pressure forces are cancelled and do notaffect valve operation. The force created by the valve inletpressure (P1) operating on the seat disc across the area ofthe port, opposes the force exerted by the adjustment spring(P2), and provides the two operating forces for these directacting evaporator pressure regulating valves. The forceexerted by the valve’s adjustment spring determines thevalve’s pressure setting. As the inlet pressure increasesabove the valve setting, the inlet pressure acting on the seat

Figure 3

Adjusting Spring

Bellows

Seat DiscSeat

Pressure TapP1

P2

P3

Flow


disc at the port of the valve will overcome the force exertedby the adjustment spring and will cause the valve to open.This allows flow through the valve. Increasing the adjust-ment spring force will increase the valve setting and thepressure required to open the valve. As evaporator loadsdrop, and less refrigerant is boiled off in the evaporator, theevaporator pressure will decrease and cause the seat disc tomove to a more closed position, until it reaches the valvesetting or minimum evaporator pressure. Any decrease inpressure below the setting will cause the valve to close.

Since direct acting valves are set at the minimum evapora-tor pressure, and require an increase in inlet pressure toopen against the valve gradient, Sporlan’s direct actingEPRs are rated for capacity at a design evaporator pressurehigher than the valve setting (see Selection Procedures formore information).

Externally Pilot Operated Valves – (S)ORIT-12, -15,and -20:Pressure Regulating Operation: These pilot operatedEPRs use high side pilot pressure to control the main valvepiston that regulates upstream/inlet pressure. The high sidepressure source allows this valve to be provided normallyopen. This allows the valve to be operated at minimal pres-sure drop to ensure maximum capacity by minimizing suc-tion line pressure losses. The high side pressure source mustmeet the following criteria to ensure optimum performanceof the pilot operated pressure regulating valve:

• Only refrigerant vapor should be used as the high pres-sure supply source to the pilot valve.

• The pilot supply line should be kept as short as possibleto minimize refrigerant condensation.

• The high pressure supply source should be at least 50 psi

greater than the downstream, or common suction pres-sure, at the outlet of the pressure regulating valve.

• If used with gas defrost, the pilot supply source must beat the same supply source or higher pressure supplysource than the defrost gas.

The pilot valve modulates in response to the upstream, orinlet pressure, as shown in Figure 4. As the inlet or evapora-tor pressure drops (P1 acting on the underside of the pilotvalve diaphragm through the inlet pilot tube connection), theadjustment spring (P2 on top of the pilot valve diaphragm)modulates the pilot port open, and allows high side pressure(P5) to enter the chamber on top of the main valve piston. Assoon as the pressure in the chamber (P3) exceeds the evap-orator pressure, the main piston begins to move closedagainst the opening spring (P4). As the valve inlet/evapora-tor pressure increases under the diaphragm the pilot port willmodulate closed, and decrease the flow of high side pressureon top of the piston. This will allow the pressure on the topof the piston to vent to the outlet of the valve through thebleed orifice. Once the pressure approaches the valve inletpressure the opening spring will open the main port andallow additional flow from the evaporator.

Defrost Operation: The SORIT version is equipped with asuction stop feature in the pilot valve. This feature willimmediately close the valve for defrost applications. Withthe pilot solenoid de-energized, as shown in Figure 5, highside pressure is allowed to enter on top of the piston,bypassing the pilot valve port. The high side pressure forcesthe main piston closed as long as the inlet pressure to thevalve does not exceed the pressure of the high side sourceto the pilot.

When defrost is terminated, the pilot solenoid coil is

Figure 4 Figure 5 SORITSolenoid CoilDE-ENERGIZEDValve CLOSED

SORITSolenoid CoilENERGIZEDValve MODULATING

P1

P2

P3P5

P1P4

Flow Flow


energized and the pilot solenoid port is closed. High sidepressure on top of the piston is vented to the outlet of thevalve through the bleed orifice. Once the pressureapproaches the valve setting the valve begins to modulate tocontrol the inlet pressure setting.

Operation Savings: (S)ORIT high side piloted EPRs canprovide significant energy savings by reducing suction linepressure drop. Piloting with high side vapor allows a nor-mally open valve design that can be applied at pressuredrops less than 0.5 psi. This allows the common suction torun at the highest possible pressure and still maintain thecoldest evaporator temperature on the rack. Table 1 showsthe percentage of compressor capacity loss due to suctionline pressure drop. As shown in the table, this capacity lossincreases considerably at lower evaporator temperatures.For example, an R-22 system running at a -25°F commonsuction would use approximately 3.5% less compressorpower with high side piloted EPRs sized at a 0.5 psi drop,when compared to internally piloted EPRs sized for a 1 psidrop.

Internally Pilot Operated Valves – (S)ORIT-PI-2, -3,-4, and -5:Pressure Regulating Operation: Since these EPRs arePiloted Internally, they do not require a high side pressuresource to operate. The valves are operated by the pressuredifferential across the valve and require a minimum pres-sure drop of 1 psi to obtain full capacity. The pilot valvemodulates in response to the upstream or inlet pressure.The inlet pressure (P1) is transmitted through internal pas-sages to the underside of the pilot valve diaphragm asshown in Figure 6. As the inlet or evaporator pressuredrops, the adjustment spring (P2) on top of the pilot valvediaphragm modulates the pilot port open, and allows inletpressure to enter the chamber on top of the valve piston. Asthe pressure in the piston chamber (P3) approaches theinlet or evaporator pressure (P1), the closing spring force(P4) causes the valve piston to modulate to a more closedposition. With the valve piston further closed an increase ininlet or evaporator pressure (P1) will move the pilot port toa more closed position and allow the piston chamber pres-sure (P3) to decrease by venting to the outlet of the valvethrough the bleed orifice. As the piston chamber pressure(P3) decreases, the inlet pressure (P1) will push against thevalve piston causing it to modulate open and compress theclosing spring.

Defrost Operation: The SORIT-PI version is equippedwith a suction stop feature in the pilot that allows the valveto completely close for defrost applications. This is accom-plished with a 3-way solenoid operator, date codes 26-02and after, as shown in Figures 6 and 7. With the pilot sole-noid coil de-energized, as shown in Figure 7, inlet pressure(P1) is allowed to enter the piston chamber through the

PilotPort

BodyPlug

SolenoidStop Coil

"Energized"

SolenoidPilot Port

Bleed Orifice

Primary Port

Manual Lift Stem

Figure 6 Figure 7SORIT-PIENERGIZEDValve MODULATING

ElectricOpenPilotPort

PilotPort

ElectricOpenCoil

Electric OpenAssembly

SolenoidStop Coil

"De-Energized"

Primary Port

Manual Lift Stem

SolenoidPilot Port

Bleed Orifice

SORIT-PIDE-ENERGIZEDValve CLOSED

P2

P3

P4

P1

P2

P3

P4

P1Flow Flow

Suction LinePressure Drop

% of Compressor CapacityLoss due to Pressure Drop

R22 R22 R404A

+ 10°F Evap. -25°F Evap. -25°F Evap.

0 — — —

1 2.2 5.6 6.1

2 4.4 12.7 10.4

3 7.1 18.1 15.3

4 9.5 24.2 19.5

Based on compressor capacity curves at 100°F condensing.

Table 1


upper solenoid port. At the same time, the lower solenoidport is closed, preventing flow to the bleed orifice from thepiston chamber. The pressure in the piston chamber (P3)plus the closing spring force (P4) will exceed the force ofinlet pressure (P1), allowing the valve to close duringdefrost.

When defrost is terminated, the pilot solenoid coil is ener-gized as shown in Figure 6 and the upper solenoid port isclosed and the lower solenoid port is opened. This returnsthe valve to pressure regulating mode, and the valve opensto allow the evaporator to pull down to the valve setting.

In addition, SORIT-PI or ORIT-PI valves may be applied inthe display case or piping trench and can be “reverse-flowed” for gas defrost. See Defrost Applications on page 4.

Manual Lift Operation: All (S)ORIT-PI valves areequipped with a manual lift stem that will mechanically openthe valve independent of refrigerant flow or operating mode(see Figure 7). Turning the lift stem clockwise will push themain piston open. The lift stem must be fully retracted (turncounterclockwise to stop) to ensure proper operation duringother operating modes. The lift stem is typically used to sim-plify installation and service. This will facilitate nitrogenflow and system evacuation prior to start-up.

Electric Open Operation: The (S)ORIT-PI valve can bespecified with an optional electric open feature, as shown inFigure 7, for dual temperature applications. See DualTemperature Applications on Page 4. The body plug in the(S)ORIT-PI pilot valve shown in Figure 6 is replaced with asolenoid operator that when energized will prevent the flowof inlet pressure to the pilot (if using the electric open fea-ture with a SORIT-PI valve it is also necessary to simulta-neously energize the defrost solenoid operator to ensureproper operation). The pressure above the piston will ventto the valve outlet through the bleed orifice allowing thevalve piston to fully open. When the electric open solenoidis de-energized, the solenoid port will open and allow flow

of inlet pressure to the pilot valve, returning the valve topressure regulating operation.

InterchangeableValve Seats:As a new feature, date code26-02 and after, the (S)ORIT-PI EPRs have been redesignedto include a threaded port and interchangeable valve seat.This new design provides an easy means of changing valvecapacity/port size without having to replace the valve body.Refer to Figure 8 for installation and removal method, andTable 2 for available sizing kits.

Selection ProceduresProper specification of a Sporlan EPR involves selecting amodel type based on desired features, options, application,and the proper valve sizing to match the evaporator(s)design capacity. The following information is required toproperly size an evaporator pressure regulating valve:

1. Refrigerant.2. Minimum evaporator temperature or valve setting (for

direct acting ORI(T)-6 and -10 models only).3. Evaporator design temperature.4. Design common suction pressure (multiple evaporator

systems) or available pressure drop across valve atevaporator design capacity (single evaporator sys-tems).

5. Evaporator(s) design capacity (Tons or Btu/hr).6. Liquid Temperature.

With these application conditions valve selections can bemade directly from the capacity tables on Page 13 for anyapplication. Special considerations for selecting direct act-ing models are covered on Page 9. Capacity tables on Pages14 and 15 are quick pick selection tables for pilot operatedEPRs used on supermarket rack applications (multipleevaporator systems). The available pressure drop, on super-market rack applications, is a function of the system designand the difference between the saturated pressure at theevaporator design temperature (circuit temperature) – thedesign common suction pressure (header temperature). Thisis referred to as the “natural” pressure drop for these

Table 2

Seat and O-Ring

ExternalPilotLine

Use a 1-1/8” socket,(S)ORIT-2, -3 and -4.Use 1-3/8” socket,(S)ORIT-5. Torqueto 9 ft.-.lbs

Figure 8

Current ValveSize

Desired ValveSize

RemoveExisting Seat

Install NewSeat

PistonAssembly and

Seat Kit

(S)ORIT-PI-2 (S)ORIT-PI-3 Yes Yes SK-PI-4 to 3

(S)ORIT-PI-2 (S)ORIT-PI-4 Yes No SK-PI-4*

(S)ORIT-PI-3 (S)ORIT-PI-2 Yes Yes SK-PI-4 to 2

(S)ORIT-PI-3 (S)ORIT-PI-4 Yes No SK-PI-4*

(S)ORIT-PI-4 (S)ORIT-PI-2 N/A Yes SK-PI-4 to 2




* Seat not supplied or required.


systems. The Quick Pick Selection tables on Pages 14 and15, allow easy selection of a pilot operated EPR, based onthe applicable conditions and considers the “natural” pres-sure drop for the system design criteria listed.

Direct Acting ORI(T)-6 & ORI(T)-10 Selection:As described in Valve Operation-Direct Acting Valves –ORIT-6 & ORIT-10, Page 5, the reported valve capacitiesare provided with the minimum evaporator pressureassumed to be 8 psi lower than the evaporator pressure atdesign load for the 0 – 50 psig adjustment range product, and12 psi lower than the evaporator pressure for the 30 – 100psig adjustment range product. The difference between thedesign evaporator pressure and the minimum evaporatorpressure is referred to as the allowable evaporator pressurechange. Therefore, for an ORI-6 0/50 rated for a 40ºF R22evaporator, the nominal capacity would allow the evaporatorpressure to drop from the design 68.5 psig to the minimumevaporator pressure of 60.5 psig or a minimum evaporatortemperature of approximately 34ºF. Refer to Table 3 forcapacity multipliers for other allowable pressure changes.

It is considered acceptable to size most single evaporator sys-tems with a 2 psi available pressure drop across the direct act-ing ORIT valves. This is not to be confused with theallowable evaporator pressure change. This is the pressuredrop across the valve when open at the rated condition withthe specified amount of refrigerant flowing through the valve.

Example: Select a direct acting ORIT for a R404A singleevaporator refrigeration system with a design evaporatortemperature of 20ºF, a design capacity of 1.4 tons, a mini-mum allowable evaporator temperature of 14ºF, and anavailable pressure drop of 2 psi.

1. From the capacity table on Page 13 the ORIT-10 iscapable of providing 2.29 tons at the design evapora-tor temperature and available pressure drop.

2. From the capacity table on Page 13 the saturationpressure at the design evaporator is 55.7 psig. Thisapplication will require a 30 – 100 psig adjustmentrange valve, and the minimum evaporator pressurefor the nominal capacity selected in step 1 will be 44psig (10ºF) or 12 psi lower. Since the specified min-imum allowable evaporator temperature is 14ºF (48psig) a correction factor will have to be used to thenominal capacity to check the selection. The allow-able evaporator pressure change is approximately 8psi (56 – 48) so the resulting capacity is 1.6 tons(2.29 x .7). The ORIT-10 is the proper selection.

Pilot Operated EPR Selection:As previously described, pilot operated EPRs have a high gainrelationship and steep gradient.As a result they require negligi-ble allowable evaporator pressure change to control from valvesetting to full valve stroke. Therefore, pilot operated EPRs arerated for capacity at a full open position, and no correction fac-tors for minimum evaporator temperatures are necessary.

Example: Select a pilot operated EPR for a 20ºF R22 evap-orator line up, with a 86,800 Btu/hr load, and piped to a10ºF rack suction header temperature. The refrigerant liquidentering the TEV is 60ºF, and the return gas temperatureentering the EPR is 45ºF (20ºF Evaporator + 25ºF Superheat= 45ºF return gas).

Using quick-pick selection table (Page 14):1. Locate 10ºF “Common Suction” temperature.2. Locate 20ºF “Circuit Temperature”3. If necessary appropriate correction factor for liquid

temperatures from the table on page 14 that varyfrom the 60ºF liquid used for the capacities in thistable (see step 3 below).

4. Scan horizontally across capacity columns to selectthe first model (of desired type) that exceeds thespecified capacity in Btu/hr for R22 refrigerant. Inthis case a SORIT-PI-3 or a SORIT-12 would beselected at 132,100 and 96,700 Btu/hr respectively.

Using conventional capacity tables (Page 13):1. Determine the “natural” pressure drop across the

valve by subtracting the saturated pressure at the10ºF rack suction header temperature from the satu-rated pressure at the 20ºF. In this case the 33 psiheader pressure is subtracted from the 43 psi circuitpressure to provide a 10 psi drop across the valve.

2. Converting 86,800 Btu/hr to tons by dividing by12,000 Btu/ton, yields 7.23 tons.

3. Locate the liquid temperature correction factor for60ºF from the table on page 13, since the capacitytable is calculated with a 90ºF liquid temperature.Divide the 7.23 ton load from step 2, by the correc-tion factor 1.13. Only 6.51 tons are required.

4. Scan vertically down the 10 psi R22 column and selectthe first model (of desired type) that exceeds the tonsfor 20ºF evaporator design temperature. As above, theSORIT-12 or SORIT-PI-3 are the appropriateselections.

Sporlan also offers a computer selection program that canprovide quick and easy product selections for a wide varietyof operating conditions. Contact your Sporlan representa-tive for more information.

ALLOWABLE EVAPORATORPRESSURE CHANGE – psi 2 4 6 8 10 12 14

CORRECTIONFACTOR

ORIT-6, 10-0/50 .3 .6 .8 1.0 1.2 1.3 1.4

ORIT-6, 10-30/100 — .2 .6 .7 .9 1.0 1.1

Table 3


PRODUCT FEATURES, SPECIFICATIONS, & NOMENCLATURE

ORIT-6 and ORIT-10

Features• Direct acting (most economical)• Adjustable• Hermetic construction (no gaskets or seals)• Corrosion resistant construction• Inlet pressure tap (standard)• Inlet strainer (standard on ODF models)

Specifications• Maximum Rated Pressure = 400 psig• MaximumTest Pressure = ORI-6 = 300 psi

ORI-10 = 200 psi• Maximum AmbientTemperature = 155°F• Maximum FluidTemperature = 240°F• Minimum Ambient/FluidTemperature = -40°F• Factory Setting = See table• Agency Certifications:

VALVE TYPE

ADJUSTMENTRANGE psig(StandardBOLD)

CONNECTIONInchesStandard

ConnectionsBOLD

DIMENSIONS – Inches WEIGHT – PoundsINLET

STRAINERPART

NUMBERA B C D SOCKET NET SHIPPING

ORIT-6

0/50(Factory set 30)*

30/100(Factory Set 60)*

5/8 ODF Solder 9.75 5.25 6.38 4.06 0.50 1.00 1.25 825-5

7/8 ODF Solder 9.75 5.25 6.38 4.06 0.75 1.00 1.25 825-7

1-1/8 ODF Solder 9.75 5.25 6.38 4.06 0.91 1.25 1.50 825-9

1/2 SAE Flare 6.41 2.68 2.86 0.94 — 1.00 1.25 NotAvailable5/8 SAE Flare 6.38 2.81 3.00 1.06 — 1.00 1.25

ORIT-10


30/100(Factory Set 60)*

7/8 ODF Solder 11.19 5.69 6.50 3.25 0.75 2.50 2.75 825-7

1-1/8 ODF Solder 11.19 5.69 6.50 3.25 0.91 2.50 2.75 825-9

1-3/8 ODF Solder 11.19 5.69 6.50 3.25 0.91 2.50 2.75 825-11

VALVE TYPEELEMENT TYPE

ANDMATERIAL

CONNECTIONSBODY MATERIAL SEATING MATERIAL

TYPE MATERIAL

ORIT-6 Bellows – BrassODF Solder Copper

Brass Metal-to-MetalSAE Flare Brass

ORIT-10 Bellows – Brass ODF Solder Copper

ORI T – 6 – 0/50 – 7/8” ODFValve type:Open onRise ofInlet Pressure

Pressure tapon inletconnection

Port size ineighths of aninch

Adjustmentrange psig*

ConnectionsODF Solder orSAE Flare

Valve Nomenclature:

* Other pressure ranges are availableTo eliminate delays in shipments, specify complete valve designations.

D

A

C

B

Materials and Construction Details

and andRecognized.

* Manufacturers can specify special settings.

Agency Product Guide File CountryUL ORI-6, -10 SFJQ SA5460 USACSA ORI-6, -10 1223-01 19953 Canada



(S)ORIT-12, -15, and -20

Features• High side pilot for improved temperaturecontrol and low ∆P operation

• Adjustable settings up to 150 psig• Optional solenoid stop feature toclose valve during system defrost

• Normally open design allows systemevacuation without a manual operator

Specifications• Maximum Rated Pressure = 450 psig• MaximumTest Pressure = 450 psig• MOPD = 300 psi (SORIT model only)• Maximum AmbientTemperature = 120°F• Maximum FluidTemperature = 240°F• Minimum Ambient/FluidTemperature = -40°F• Factory Setting = See table• Agency Certifications:

VALVETYPE

PORTSIZE


STANDARD COILRATINGS **MKC-1

CONNECTIONODF SOLDER

Inches

DIMENSIONS – Inches WEIGHT – Poundswith solenoid stop

WEIGHT – Poundswithout solenoid stop

Volts/Cycles Watts A B C D E NET SHIPPING NET SHIPPING

(S)ORIT-12 25/32 0/100(Factory set 30)*


24/50-60120/50-60

208-240/50-60120-208-240/50-60

10

7/8, 1-1/8, 1-3/8 4.99 4.25 0.72 6.50 3.46 4.00 4.75 3.50 4.25

(S)ORIT-15 1 1-3/8 4.91 5.53 0.88 6.42 3.46 5.75 7.00 5.25 6.50

(S)ORIT-20 1-5/16 1-5/8, 2-1/8 5.66 5.53 1.44 7.16 3.50 9.75 11.00 9.25 10.50

S ORI T – 15 – 0/100 – 1-3/8” ODF – 120/50-60Valve type:Open onRise ofInlet pressure

Solenoid Stopfeature(optional)

Valve size Adjustmentrange psig*

ConnectionsODF Solder

Valve Nomenclature:

Electricalspecificationsfor SolenoidStop Feature(optional)

Pressure tapon inletconnection

* Other pressure ranges are availableOmission of designation for an optional item indicates a request for a valve less that specific option. Example: ORIT-15-0/75-1-3/8 ODF;this indicates a valve less the solenoid stop feature.When ordering a valve with a solenoid stop feature, specify voltage and cycles.When ordering the solenoid coil assembly only, specify MKC-1 coil, voltage and cycles. Example: MKC-1-120 volts/50-60 cycles.

1.56” Coil Removal

Top View

OptionalSolenoidStop Feature

AD

E

B B

C

** Available with junction box or conduit boss at no extra charge. For voltages other than listed consult Bulletin 30-10.* Manufacturers can specify special settings.

Agency Product Guide File CountryUL SORIT-12, -15, -20 YIOZ MH4576 USAULc SORIT-12, -15, -20 YIOZ7 MH4576 CanadaUL ORIT-12, -15, -20 SFJQ SA5460 USAULc ORIT-12, -15, -20 SFJQ7 SA5460 Canada

and andRecognized.



(S)ORIT-PI-2, -3, -4, and -5Features

• Piloted internally (no high sideconnection required)

• Adjustable settings up to 150 psig• Optional solenoid stop feature toclose valve during system defrost

• Optional electric open feature for“two temperature operation”

• Corrosion resistant construction• Manual lift stem to allow system evacuation

Specifications• Maximum Rated Pressure = 400 psig• MaximumTest Pressure = 400 psig• MOPD = 190 psig (SORIT-PI model only)• Maximum AmbientTemperature = 120°F• Maximum FluidTemperature = 240°F• Minimum Ambient/FluidTemperature = -40°F• Factory Setting = See table• Agency Certifications:

VALVE TYPE PORTSIZE


STANDARD COILRATINGS **MKC-1

CONNECTIONODF SOLDER

Inches

DIMENSIONS – Inches WEIGHT – Poundswith solenoid stop

WEIGHT – Poundswithout solenoid stop

Volts/Cycles Watts A B C D E F G NET SHIPPING NET SHIPPING

(S)ORIT-PI-2 1/2


or75/150

(Factory Set 120)*

24/50-60120/50-60

208-240/50-60120-208-240/50-60

10***

5/8 .50 8.63 1.70 2.28 .72 5.25 6.30 5.94 7.12 5.83 7.007/8 .78 8.63 1.70 2.28 .72 5.25 6.30 6.04 7.22 5.47 6.651-1/8 .91 8.63 1.70 2.28 .72 5.25 6.30 6.06 7.24 5.84 7.001-3/8 1.00 10.9 2.54 2.28 .72 5.25 6.30 6.00 7.18 6.05 7.22

(S)ORIT-PI-3 3/4

7/8 .78 8.63 1.70 2.28 .72 5.25 6.30 6.06 7.24 5.87 7.041-1/8 .91 8.63 1.70 2.28 .72 5.25 6.30 6.06 7.24 5.47 6.651-3/8 1.00 10.9 2.54 2.28 .72 5.25 6.30 6.06 7.24 5.99 7.161-5/8 1.09 10.9 2.54 2.28 .72 5.25 6.30 6.20 7.38 5.99 7.16

(S)ORIT-PI-4 1

1-1/8 .91 8.63 1.70 2.28 .72 5.25 6.30 6.06 7.24 5.47 6.651-3/8 1.00 10.9 2.54 2.28 .72 5.25 6.30 5.94 7.12 5.84 7.001-5/8 1.09 10.9 2.54 2.28 .72 5.25 6.30 6.06 7.24 5.89 7.062-1/8 1.25 10.9 2.54 2.28 .72 5.25 6.30 6.10 7.28 6.43 7.60

(S)ORIT-PI-5 1-1/41-3/8 1.00 10.9 2.25 2.78 1.28 5.69 6.74 6.30 7.92 7.00 8.601-5/8 1.09 10.9 2.25 2.78 1.28 5.69 6.74 7.00 8.62 7.00 8.602-1/8 1.25 10.9 2.25 2.78 1.28 5.69 6.74 7.28 8.90 7.00 8.60

S ORI T – PI – 2 7 S E – 0/100 120/50-60Basic type:Open onRise ofInletpressure

SolenoidStopfeature(optional)

Fitting sizein 1/8 of aninch

Adjustmentrange psig *

Electricopenfeature(optional)

Valve Nomenclature:

* Other pressure ranges are available.

Electricalspecificationsfor SolenoidStop Feature(optional)

Pressuretap on inletconnection

Omission of designation for an optional item indicates a request for a valve less that specific option.Example: ORIT-PI-411-0/100; this indicates a valve less the solenoid stop feature.When ordering a valve with a solenoid stop feature, specify voltage and cycles.When ordering the solenoid coil assembly only, specify MKC-1 coil, voltage and cycles. Example: MKC-1-120 volts/50-60 cycles.

Pilotedinternally

Solenoidstopfeature(optional)

Port size in1/4 of aninch

2.98

1.56 Coil Removal

F

D

B

A

C

G

E

* Manufacturers can specify special settings.** Available with junction box or conduit boss at no extra charge. For voltages other than listed consult Bulletin 30-10.*** 10 watts/coil if specifying SORIT-PI-xxx, SE would be 20 watts with both coils energized.

and andRecognized.

Agency Product Guide File CountryUL SORIT-PI-2, -3, -4, -5 YIOZ MH4576 USAULc SORIT-PI-2, -3, -4, -5 YIOZ7 MH4576 CanadaUL ORIT-PI-2, -3, -4, -5 SFJQ SA5460 USAULc ORIT-PI-2, -3, -4, -5 SFJQ7 SA5460 Canada


EPYTEVLAV

ROTAROPAVENGISED

ERUTAREPMET

F°

gisp-

ERUSSERPNOITARUTAS

TNAREGIRFER

22a431

705&

A404

TNAREGIRFER

isp-

EVLAVSSORCA

PORDERUSSERP

22a431

A404705

5.01

25

0102

5.01

25

0102

5.01

25

0102

6-TIRO001/03

ro05/0

045.86

4.537.58

8.98–

39.092.1

49.105.2

48.2–

17.079.0

93.116.1

26.1–

48.071.1

67.103.2

96.202

1.344.81

7.558.85

–67.0

40.125.1

68.129.1

–55.0

47.099.0

40.1–

–76.0

29.063.1

96.108.1

00.42

5.609.23

2.53–

06.018.0

31.152.1

52.1–

14.045.0

46.0–

––

15.007.0

99.041.1

41.102-

2.013.61

8.71–

64.016.0

07.087.0

97.0–

––

––

––

83.025.0

86.007.0

07.0

01-TIRO001/03

ro05/0

045.86

4.537.58

8.98–

72.202.3

20.599.6

16.9–

67.184.2

58.313.5

01.7–

40.288.2

25.413.6

07.802

1.344.81

7.558.85

–68.1

16.280.4

56.566.7

–83.1

49.100.3

70.4–

–36.1

92.295.3

89.497.6

00.42

5.609.23

2.53–

94.190.2

52.354.4

88.5–

60.194.1

62.2–

––

22.127.1

76.266.3

88.402-

2.013.61

8.71–

81.156.1

35.204.3

03.4–

––

––

––

79.063.1

01.248.2

66.3

21-TIRO)S(051/57

ro57/0

045.86

4.537.58

8.9840.2

88.260.4

43.697.8

9.1185.1

32.231.3

58.445.6

26.848.1

95.266.3

27.549.7

8.0102

1.344.81

7.558.85

76.163.2

13.351.5

60.793.9

52.157.1

54.257.3

00.5–

74.170.2

19.235.4

42.663.8

00.42

5.609.23

2.5343.1

98.156.2

80.415.5

60.769.0

53.178.1

08.2–

–51.1

16.172.2

05.367.4

81.602-

2.013.61

8.7160.1

94.180.2

51.341.4

49.4–

––

––

–88.0

32.127.1

26.284.3

82.4

51-TIRO)S(051/57

ro57/0

045.86

4.537.58

8.9883.3

67.407.6

4.013.41

1.9126.2

96.361.5

19.76.01

3.3140.3

92.430.6

04.90.31

4.7102

1.344.81

7.558.85

67.298.3

64.524.8

4.118.41

60.298.2

30.470.6

98.7–

24.224.3

08.424.7

1.012.31

00.42

5.609.23

2.5322.2

21.363.4

36.697.8

7.0185.1

12.260.3

74.4–

–98.1

66.237.3

17.536.7

35.902-

2.013.61

8.7157.1

64.214.3

70.534.6

16.6–

––

––

–54.1

30.228.2

42.474.5

42.6

02-TIRO)S(051/57

ro57/0

045.86

4.537.58

8.9804.7

4.017.41

9.225.13

3.2447.5

90.83.11

4.714.32

8.9266.6

04.92.31

7.025.82

5.8302

1.344.81

7.558.85

60.635.8

0.215.81

2.528.23

25.453.6

58.84.31

5.71–

13.594.7

5.013.61

3.224.92

00.42

5.609.23

2.5368.4

48.675.9

6.415.91

1.4284.3

68.427.6

19.9–

–51.4

48.591.8

6.219.61

3.1202-

2.013.61

8.7158.3

93.594.7

2.114.41

8.51–

––

––

–71.3

54.402.6

53.92.21

2.41

2-IP-TIRO)S(051/57

ro001/0

045.86

4.537.58

8.98–

91.240.3

76.429.6

70.9–

27.193.2

38.350.5

41.6–

59.107.2

61.472.6

13.802

1.344.81

7.558.85

–18.1

15.278.3

84.509.6

–73.1

09.119.2

07.3–

–75.1

81.263.3

68.422.6

00.42

5.609.23

2.53–

84.140.2

02.361.4

68.4–

80.184.1

21.2–

––

52.137.1

67.236.3

73.402-

2.013.61

8.71–

81.136.1

14.259.2

70.3–

––

––

––

79.043.1

30.255.2

47.2

3-IP-TIRO)S(051/57

ro001/0

045.86

4.537.58

8.98–

98.324.5

24.81.21

1.61–

50.352.4

17.649.8

1.11–

74.358.4

25.70.11

7.4102

1.344.81

7.558.85

–12.3

74.449.6

66.94.21

–24.2

83.341.5

16.6–

–97.2

09.350.6

65.81.11

00.42

5.609.23

2.53–

06.236.3

26.593.7

88.8–

88.195.2

67.3–

––

02.270.3

48.434.6

29.702-

2.013.61

8.71–

70.288.2

52.433.5

07.5–

––

––

––

07.173.2

85.385.4

90.5

4-IP-TIRO)S(051/57

ro001/0

045.86

4.537.58

8.98–

58.522.8

9.219.81

2.52–

75.424.6

4.010.41

6.71–

52.583.7

6.111.71

0.3202

1.344.81

7.558.85

–18.4

67.66.01

1.515.91

–26.3

80.500.8

4.01–

–12.4

19.562.9

3.315.71

00.42

5.609.23

2.53–

98.364.5

57.86.11

2.41–

18.230.4

09.5–

––

03.346.4

25.71.01

6.2102-

2.013.61

8.71–

70.323.4

56.634.8

52.9–

––

––

––

45.275.3

95.512.7

62.8

5-IP-TIRO)S(051/57

ro001/0

045.86

4.537.58

8.98–

23.73.01

1.614.22

4.03–

76.579.7

3.218.61

0.22–

95.682.9

5.412.02

6.7202

1.344.81

7.558.85

–89.5

24.81.31

0.810.42

–64.4

42.655.9

8.21–

–52.5

93.75.11

9.513.12

00.42

5.609.23

2.53–

08.437.6

4.011.41

1.81–

24.367.4

51.7–

––

01.467.5

09.81.21

8.5102-

2.013.61

8.71–

77.362.5

89.75.01

7.21–

––

––

––

31.373.4

86.698.8

0.11

Capacitiesarecalculatedin

accordance

withASHRAEStandard158.2,

“MethodsoftestingCapacityof

RefrigerantPressure

Regulators”.Capacitiesarebased

on90°F

LiquidTemperature

enteringtheexpansion

valveand25°F

superheatedvaporenteringthecompressor.

ORIT-6andORIT-10areratedbased

onavalvesetting8psilower

than

theEvaporatorDesignTemperature

for

the0/50

psiadjustmentrange,and12

psilower

forthe30/100

psiadjustmentrange.

CA

PAC

ITY

TAB

LE—

Cap

acit

y(T

on

s)

Refr

iger

antL

iqui

dTe

mpe

ratu

reCo

rrec

tion

Fact

ors

for9

0°F

Liqu

id10

00.

950.

940.

92

90 1.00

1.00

1.00

80 1.04

1.06

1.08

70 1.09

1.11

1.16

60 1.13

1.17

1.23

50 1.17

1.22

1.31

40 1.22

1.27

1.38

30 1.26

1.33

1.45

20 1.30

1.38

1.51

10 1.34

1.43

1.58

0 1.38

1.48

1.65

R-22

R-13

4aR-

404A

&R-

507


NOM

MOCNOITCUS

F°

TIUCRIC.PAVE

roF°

22T

NAREGIRFER705

&A404

TNAREGIRFER

IP-TIRO)S(TIRO)S(

IP-TIRO)S(TIRO)S(

23

45

2151

022

34

521

5102

53-

*53-009,8

005,51000,32

000,82000,11

005,81009,93

008,8003,51

007,22007,72

009,01003,81

005,9333-

009,21005,22

006,33009,04

001,61000,72

001,85007,21

003,22002,33

006,04000,61

008,62007,75

03-006,02

002,63003,65

007,66002,62

000,44001,49

005,02000,63

000,65003,66

001,62007,34

005,3952-

009,92009,25

007,28006,99

001,93004,56

007,831007,92

006,25003,28

003,99000,93

001,56001,831

52-

*52-001,11

004,91007,82

000,53008,31

002,32000,05

000,11002,91

005,82000,53

008,31001,32

009,9432-

000,61001,82

009,14002,15

001,02008,33

007,27008,51

008,72007,14

002,15001,02

008,33007,27

12-000,32

003,04006,26

008,37000,92

007,84004,401

000,32003,04

006,26009,37

000,92007,84

004,40181-

008,03002,45

005,48006,001

005,93002,66

003,141008,03

003,45006,48

009,001006,93

004,66006,141

51-003,73

000,66002,301

001,421007,84

004,18000,371

004,73002,66

005,301006,421

009,84008,18

006,37101-

009,64007,38

004,131003,061

008,26008,401

001,122000,74

000,48000,231

004,161002,36

005,501002,222

51-

*51-006,31

009,32004,53

004,34001,71

007,82009,16

005,31007,32

004,53007,34

002,71009,82

002,2631-

006,91005,43

005,15003,36

009,42008,14

000,09004,91

004,43006,15

007,36001,52

001,24006,09

01-009,13

000,65000,78

009,201005,04

008,76003,541

002,23004,65

007,78008,301

008,04004,86

005,6415-

001,64005,18

003,721008,251

000,06003,001

004,312005,64

003,28006,821

006,451007,06

005,101006,512

0009,75

001,301007,161

009,691002,77

008,821000,272

005,85002,401

007,361007,991

003,87006,031

005,5725

007,86002,321

002,491005,932

007,39002,651

006,723005,96

008,421000,791

006,342003,59

008,851005,233

01

*01006,12

002,83001,75

008,07009,72

008,64000,101

008,12007,83

003,85005,27

006,82000,84

004,30111

000,22008,83

002,85001,27

004,82007,74

008,201002,22

004,93004,95

009,37001,92

009,84004,501

21009,03

009,45009,28

008,201005,04

009,76003,641

003,13008,55

006,48005,501

005,14007,96

001,05131

009,73007,76

005,201000,721

000,05009,38

003,081004,83

008,86008,401

004,031003,15

001,68001,581

41000,44

008,87007,911

009,741002,85

006,79005,902

006,44002,08

005,221009,151

008,95002,001

002,51251

009,15000,19

003,141007,661

006,56000,011

008,532003,35

005,39001,541

004,171004,76

000,311003,242

02009,47

001,231000,602

003,642007,69

009,161008,443

000,77009,531

001,212000,452

007,99009,661

002,55352

007,39004,661

006,062005,513

007,321007,602

006,734006,69

006,171000,962

003,623009,721

007,312000,254

51

*51006,32

006,14004,26

005,77005,03

003,15006,011

009,32004,24

009,36008,97

004,13007,25

007,31161

000,42004,24

005,36009,87

001,13002,25

006,211003,42

002,34001,56

003,18000,23

007,35009,511

71007,33

009,95005,09

005,211003,44

004,47001,061

002,43001,16

008,29009,511

006,54006,67

009,46181

003,14008,37

000,211000,931

007,45008,19

004,791009,14

003,57009,411

002,341004,65

006,49004,302

91009,74

008,58007,031

008,161006,36

008,601003,922

007,84007,78

003,431009,661

006,56001,011

004,63202

008,65006,99

006,451004,281

007,17003,021

000,852006,85

007,201004,951

002,881000,47

001,421001,662

52009,18

005,441002,522

001,962007,501

009,671001,773

006,48003,941

009,232006,872

004,901001,381

000,09353

002,121004,612

002,043000,614

000,361009,172

007,275007,521

007,422005,353

005,334008,961

001,382005,595

02

*02006,52

004,54001,86

007,48004,33

000,65008,021

001,62004,64

000,07005,78

004,43009,75

008,42112

001,62001,64

003,96002,68

009,33000,75

000,321005,62

002,74003,17

001,98001,53

009,85001,721

22006,63

002,56007,89

009,221004,84

002,18009,471

003,73008,66

006,101001,721

000,05000,48

009,08132

008,44003,08

000,221007,151

007,95002,001

005,512007,54

003,28007,521

000,751008,16

007,301000,322

42000,25

004,39004,241

006,671005,96

006,611004,052

001,35008,59

009,641009,281

009,17007,021

002,95252

001,26007,801

008,861001,991

003,87003,131

007,182003,46

006,211008,471

003,602001,18

001,631008,192

53009,111

005,891006,013

003,573002,741

000,642004,125

003,611004,602

003,323004,193

005,351005,652

000,345Capacitiesarecalculatedin

accordance



RefrigerantPressure

Regulators”.Capacitiesarebased

on60°F

LiquidTemperature


valveand25°F


*Capacitiesarecalculatedat

1psi∆P

when

commonsuctionandcircuitevaporatortemperaturesarethe

same.Forcapacitiesatconditionsotherthan

those

showninthetables,use

Sporlan

SelectionProgramorcon-

tactSporlan

Headquarters.

QU

ICK

PIC

KS

ELE

CT

ION

TAB

LES

for

SU

PE

RM

AR

KE

TM

ULT

IPLE

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AP

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–V

alve

Cap

acit

yB

tuh

Refr

iger

antL

iqui

dTe

mpe

ratu

reCo

rrec

tion

Fact

ors

for6

0°F

Liqu

id10

00.

840.

74

90 0.88

0.81

80 0.92

0.88

70 0.96

0.94

60 1.00

1.00

50 1.04

1.06

40 1.07

1.12

30 1.11

1.17

20 1.15

1.23

10 1.18

1.28

0 1.22

1.33

R-22

R-40

4A&

R-50

7


NOM

MOCNOITCUS

F°

TIUCRIC.PAVE

roF°

a431T

NAREGIRFERA104

TNAREGIRFER

IP-TIRO)S(TIRO)S(

IP-TIRO)S(TIRO)S(

23

45

2151

022

34

521

5102

53-

*53-006,4

009,7000,21

004,41007,5

005,9005,02

008,4004,8

007,21003,51

000,6001,01

008,1233-

006,6006,11

006,71001,12

003,8009,31

000,03001,7

003,21007,81

004,22008,8

008,41009,13

03-006,01

007,81001,92

006,43006,31

008,22007,84

003,11009,91

009,03007,63

004,41002,42

007,1552-

004,51004,72

009,24001,25

004,02001,43

002,27004,61

001,92005,54

002,55006,12

001,63005,67

52-

*52-009,5

003,01005,51

007,81004,7

003,21006,62

002,6009,01

003,61007,91

008,7000,31

001,8232-

006,8001,51

007,22004,72

008,01001,81

009,83001,9

009,51009,32

009,82004,11

001,91000,14

12-003,21

005,12005,33

006,93006,51

001,62009,55

000,31007,22

003,53007,14

004,61005,72

009,8581-

005,61001,92

003,54003,45

003,12007,53

009,57004,71

006,03007,74

001,75004,22

005,73009,97

51-000,02

004,53005,55

002,76004,62

000,44002,39

000,12003,73

004,85006,07

007,72003,64

001,8901-

001,52001,54

000,17005,78

003,43001,75

008,911005,62

004,74007,47

008,19009,53

009,95009,521

51-

*51-006,7

002,31007,91

009,32004,9

008,51001,43

000,8009,31

007,02001,52

009,9006,61

007,5331-

000,11003,91

009,82000,53

008,31001,32

008,94006,11

002,02002,03

007,63004,41

002,42001,25

01-006,71

000,13002,84

002,75005,22

007,73006,08

005,81004,23

004,05008,95

005,32004,93

003,485-

005,52003,54

008,07006,58

006,33001,65

009,811007,62

003,74000,47

003,98000,53

006,85002,421

0001,23

004,75004,09

001,111005,34

005,27004,251

005,33009,95

003,49007,511

003,54006,57

009,8515

002,83009,86

001,901003,631

003,35006,88

007,481009,93

009,17007,311

006,141004,55

001,29002,291

01

*01003,31

002,32004,43

002,24006,61

009,72002,06

007,31009,32

004,53005,34

001,71007,82

000,2611

005,31007,32

002,53002,34

000,71005,82

005,16000,41

004,42002,63

004,44005,71

003,92003,36

21001,91

006,33002,05

006,16002,42

007,04006,78

006,91006,43

006,15003,36

009,42008,14

001,0931

005,32005,14

003,26002,67

000,03003,05

000,801001,42

007,24000,46

003,87008,03

007,15000,111

41007,72

005,84003,57

008,88009,43

006,85006,521

004,82008,94

004,77002,19

009,53002,06

001,92151

000,13005,45

007,48003,001

004,93001,66

005,141009,13

000,65000,78

000,301005,04

009,76003,541

02008,44

003,97009,321

000,941005,85

008,79007,702

000,64004,18

001,721007,251

009,95003,001

001,31252

002,65002,001

004,751001,291

003,57006,521

008,462006,75

007,201003,161

006,691000,77

006,821003,172

51

*51007,41

007,52002,83

009,64005,81

000,13009,66

001,51004,62

002,93001,84

000,91008,13

006,8661

000,51002,62

000,93009,74

009,81007,13

003,86004,51

009,62000,04

001,94003,91

005,23000,07

71001,12

002,73006,55

004,86009,62

002,54003,79

006,12001,83

000,75001,07

006,72003,64

007,9981

009,52009,54

000,96006,48

003,33008,55

000,021005,62

000,74006,07

006,68001,43

002,75009,221

91007,03

008,35006,38

006,89008,83

000,56005,931

008,03008,45

006,28009,001

007,93006,66

009,24102

005,43005,06

000,49003,111

007,34003,37

000,751003,53

000,26003,69

009,311008,44

001,57008,061

52007,94

000,88004,731

002,561008,46

004,801004,032

009,05000,09

006,041008,861

002,66008,011

006,53253

008,37006,231

003,902008,852

003,101007,861

003,353004,57

003,531004,312

003,362001,301

007,171001,063

02

*02002,61

004,82002,24

000,25005,02

004,43002,47

006,61000,92

002,34002,35

009,02002,53

008,5712

005,61009,82

001,34001,35

009,02001,53

007,57009,61

006,92000,44

003,45004,12

009,53004,77

22002,32

000,14005,16

008,57008,92

001,05008,701

007,32009,14

008,26004,77

005,03001,15

001,01132

005,82006,05

002,67007,39

009,63008,16

009,231001,92

007,15008,77

006,59006,73

001,36007,531

42001,43

006,95006,29

002,901009,24

000,27005,451

008,33002,06

000,19004,111

008,34005,37

007,75152

002,83000,76

002,401002,321

004,84002,18

009,371000,93

004,86003,601

007,521004,94

008,28005,771

53000,96

009,221000,391

001,532001,29

008,351005,423

003,07002,521

004,691009,832

006,39004,651

003,033Capacitiesarecalculatedin

accordance



RefrigerantPressure

Regulators.”Capacitiesarebased

on60°F

LiquidTemperature


valveand25°F


*Capacitiesarecalculatedat1psi∆P

,when

commonsuctionandcircuitevaporatortemperaturesarethesame.

Forcapacitiesat

conditionsother

than

those

shownin

thetables,use

Sporlan

SelectionProgram,orcontact

Sporlan

Headquarters.

QU

ICK

PIC

KS

ELE

CT

ION

TAB

LES

for

SU

PE

RM

AR

KE

TM

ULT

IPLE

EV

AP

OR

ATO

RS

YS

TE

MS

–V

alve

Cap

acit

yB

tuh

Refr

iger

antL

iqui

dTe

mpe

ratu

reCo

rrec

tion

Fact

ors

for6

0°F

Liqu

id10

00.

810.

84

90 0.86

0.88

80 0.90

0.92

70 0.95

0.96

60 1.00

1.00

50 1.05

1.04

40 1.09

1.08

30 1.14

1.12

20 1.18

1.15

10 1.22

1.19

0 1.26

1.23

R-13

4aR-

401A

Printed in U.S. of A. 35-507

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