Variable Volume Vane Pumps · 2010. 6. 4. · Variable Volume Vane Pumps Introduction Series PVV...

Variable Volume Vane PumpsIntroduction Series PVV

THRUST SCREW

J

(FACTORY ADJUSTMENT ONLY)

\ .,,*/[:~iM I f

PRESSURE AREA ~

CAM RING

-f‘ L CAM RING

ROTOR BIAS PISTON

XRl [THRUSTSCREWSPRING SUCTION I PRESSURE ~ SUCTION

SHOCK TO SERVOSUPPRESSION PISTONLAND

PORT III

%111 Compensator Control Assemblv

116

For additional information - call your localParker Fluidpower Motion & Control Distributor.


General DescriptionVane pumps generate a pumping action by causingvanes to track along a cam ring.

The pumping mechanism basically consists of a rotor,vanes, a cam ring, and closely fitting side plates.

INLETROTOR

PORT _ L~

‘H”=+PORT PLATE OUTLET

PORT

The rotor houses the vanes and is an integral part of theshaft which is connected to a prime mover. As the rotoris turned, vanes are thrown out by centrifugal force andtrack along the cam ring. As the vanes make contact,a seal is formed between vane tip and cam ring.

The cam ring is positioned off-center to the rotor. As therotor is turned, an increasing and decreasing volume isformed between vane tip and cam ring.

Maximum Flow

The amount of fluid a vane pump displaces is determinedby the maximum and minimum distance the vanes areextended and the width of the vanes.

Since there are no ports in the ring, one of the side platesincorporates ports which separate incoming from out-going fluid. This plate is referred to as the port plate. Theinlet port of the port plate is located where the increasingvolume is formed. The port plate’s outlet port is locatedwhere the decreasing volume is generated. All fluidenters and exits the pumping mechanism through theport plate. The inlet and outlet ports in the port plate are,of course, connected respectively to the inlet and outletports in the pump housing.

Before a vane pump can operate properly, a positive sealmust exist between vane tip and cam ring. When a vane

pump is started, centrifugal force is relied on to throwthe vanes outward and achieve a seal.

Once the pump is primed and system pressure beginsto rise, a tighter seal must exist at the vane so that leakagedoes not increase across the vane tip. To generate a bet-ter seal at higher pressures, system pressure is directedto the underside of the vane. With this arrangement, thehigher a system pressure becomes the more force isdeveloped to push the vane out against the cam ring.

Hydraulically loading a vane in this manner develops avery tight seal at the vane tip. But, if the force loadingthe vane is too great, vanes and cam ring would wearexcessively and the vanes would be a source of drag.

To achieve the best seal and cause the least drag andwear, Parker designs their pumps so that the vanes areonly partially loaded.

The use of vanes with a chamfer or beveled edgeeliminates high vane loading. The complete undersideof the vane area is exposed to system pressure as wellas a large portion of the area at the top of the vane.

FORCGENE

CAM

D

DUA~VANE

PVV 125/142

This results in a balance of most of the vane. Thepressure which acts on the unbalanced area is the forcewhich loads the vanes.

Parker PVV series vane pumps are pressure compen-sated units. They are designed to provide only the flowrequired by the system to accomplish useful work. Pumpoutput flow is controlled by causing the cam ring tore~osition itself about the rotor. When the cam rina iscentered about the rotor

Maximum Flow

no output flow occurs. -

Zero Output Flow

Cam ring position is controlled by the compensatingmechanism of the pump.

mA

Hydraulic Pump/Motor DivisionOtsego, Ml 49078

Motion &Control 117


PVV FeaturesShock SuppressorThe PW 125/142 compensators include a built-in shocksuppressor. Any pressure, such as shock pressure, thatexceeds 200 PSI (14 bar) above the setting of the com-pensator spring allows flow from the pressure port to thepumps suction cavity. This momentary opening knocksthe peak from any severe shock condition caused by thesystem.

DART COMPENSATOR

~ I ‘p~”’ ~Dy TO SERVO

SP;ING I SUC;ION I PRESSURE SUCTIONSPRING SHOCK \

SUPPRESSION COMPENSATORLAND SPOOL

The actual magnitude of the shock in a system with orwithout this feature depends upon operating conditionssuch as the rate of change of flow, the size of the system,the magnitude of volume change, and the shock ab-sorbing ability of the system lines and components.Generally, the reduction in shock between a system thatdoes not have this feature compared to a system thatdoes is approximately one-half. In systems with lowcapacitance and/or directional control valves mountedclose to outlet, a system relief valve is recommended setapproximately 300 PSI (21 Bar) above maximum pumppressure.

High Overall EfficiencyThe hydrostatic clearance control is the main feature thatmakes it possible for this pump to operate at high overallefficiency. This feature also compensates for wear, whichhelps to maintain the high efficiency throughout the lifeof the pump. This high overall efficiency is measured onproduction pumps running at 2000 PSI(138 Bar), 1800RPM, with an oil viscosity of 150 SSU.

Hydrostatic bearing pockets, located in the side plates,maintain approximately a .0004 inch clearance betweenthe side plates and the cam ring and a .0005 inchclearance between the side plates and rotor. The designof the hydrostatic feature is such that a change of visco-sity does not influence the clearance.

HYDROSTATIC BEARING HYDRAULICALLY LOADEDPOCKETS / FLEXIBLE SIDE P~TE

CONTROLLED CLEARANCEWITH HYDROSTATICBEARING

HYDROSTATIC BEARING HYDRAULICALLY LOADEDPOCKETS \ FLEXIBLE SIDE PL4TE

CONTROLLED CL~”RANCEWITH HYDROSTATICBEARING

When a 65 gallon pump runs at 85 to 900\o overall effi-ciency, the amount of heat energy that is lost due to thisinefficiency is not readily apparent. A 65 gallon pumpoperating at 2000 PSI (138 Bar) would have the follow-ing horsepower loss:

900/0 Overall 850/0 Overall 800/0 Overall

Efficiency Efficiency Efficiency

8.43 HP Loss 13,38 HP LoSS 18.96 HP Loss

A phenomenon that is not generally recognized invariable volume pumps is the fact that inefficiencies, orhorsepower loss, of a pump will remain nearly constantthrough the whole volume range; therefore, the 900/0overall efficient pump will have approximately.8.43 HPheat loss throughout the full flow range. Since there isno useful work being done, all of this horsepower goesinto heat. It is obvious that the 80’??0and 85%0 efficientpumps generate considerably more heat horsepowerthan the 900!0 pump. In fact, the 800’0 pump at 18.96 HPloss is more than twice the heat generated by the 90%0pump.

For additional information - call your local

118 Parker Fluidpower Motion & Control Distributor.


Double Suction PortsThe PVV 125 and PVV 142 introduces fluid at both sideplates. This double suction feature assists in supplyingoil to the pumping cavity. Inlet conditions at pump speedsof 1800 RPM and cold, high viscosity fluids are improved.

Manual Volume ControlFor some applications it is desirable to limit a pumps max-imum displacement. This function is accomplished with

m

a manual volume adjustment. The adjustment can be ~turned in or out to limit the maximum travel of the biaspiston. This in turn limits cam ring travel and maximumpump output.

Double-Cored Suction

Manual Volume Control

Automatic AirbleedAir in the pumping cavity on initial start-up, or that mayhave leaked in over a long shutdown period, should bedispelled from the system. A pump may fail to prime ifthis air is not removed. If the air is not removed and thepump does prime, the air will be forced into the fluid. Thisdissolved air content may show up as cavitation,

The PW 125/142 automatically discharges the air intothe case and out the case drain line until there is oil inthe pumping cavity. A hole in the bias piston is uncoveredby a ball and spring, which allows air to escape. Whenoil enters the pumping cavity, pressure is created toreseat the ball which closes the hole in the bias piston.

Built-In Automatic Airbleed


Motion &Contml 119

,,


Standard Remote Compensator (M)The standard remote compensator consists, basically, ofa compensator body, preset compensator spring, com-pensator spool and an adjustable direct operated reliefsection.

Pressure is directed to the right end of the compensatorspool via the axial hole in the spool. Pressure is alsodirected to the left end of the compensator spool via theorifice in the spool. When the pressure at both ends of

the spool is equal, the compensator spring holds thecompensator spool to the right and system pressure isapplied to the servo piston forcing the cam ring to themaximum flow position. (Note: The area of the servopiston is approximately twice the area of the bias pistonwhen the pressure on both pistons is equal. The forceof the servo piston will be greater and the cam ring willbe forced to its maximum flow operation position,)

DART

~ / ‘~”’ ~y~ENsATOR COMPENSATORL

s

SPR;NG ~ PRESSURE ~

SHOCKSUPPRESSIONLAND ill

CONNECTEDPRESSURE VDRILL

TO SYSTEM‘IA INTERNAL I

f- CAM RINGSERVO PISTON

(FAcToRyADJusTMENTo”Ly)/7/AJTHRUST SCREW

IVANES —

ROTOR — lLJ CAM RING BIAS PISTON

J

,REA

120



When the setting of the direct operated relief section of PSI (16 Bar). Therefore when system pressure reachesthe compensator is reached, the dart moves off its seat. 225 PSI (16 Bar) above the pressure in the springThis limits the pressure in the spring cavity which is

m

cavity, the compensator spool moves to the left. Pressure Lapplied to the left end of the compensator spool. The is bled from the servo piston and the cam ring movesspring biases the spool with a force equivalent to 225 to the no flow position.

DART COMPENSATOR

CONNECTED TO SYSTEMPRESSURE VIA INTERNALDRILL

h--’

F=T

/ SP<ING

/

SUC+ION /

SPRING PRESSURE

LAND

t

-1

CAM RING .7 n n < CAM”RINGBIAS PISTON’ ~ SERVO PISTON

Remote OperationA remote control port is provided for connecting exter- external relief must be lower than that of the pumps built-nally mounted, direct operated relief valves to control the in relief. Multiple relief valves or electrically modulatedcompensating pressure of the pump. The setting of an relief valves can also be used.

T,.

1- 1—

-..I I I I I I I I I


Motion&Control 121


Electrohydraulic Flow And PressureControlThe Parker electrohydraulic system, for flow and pressure Components required for electrohydraulic flow controlcontrol, functions by adjusting the pressure compensator operation are the “S” or “SE” pump option, controlsetting to maintain a desired flow output. A transducer amplifier board, proportional pressure control valve, andbuilt into the pump, gives a feedback signal proportional special sequence valve.to the cam ring offset (pump displacement),

The amplifier board contains the control elements, out-The control amplifier board automatically adjusts the put elements, and a power supply (120 VAC primary).pressure setting of the pump to keep this feedback signal Input signals may be constant signals, step inputs, orequal to the commanded flow signal. A pressure limit waveforms.signal may also be inputted to the control board, func-tioning as a “not to exceed” command.

~----– ————----1

I

I I

MAXIMUM !

I

FLOW

/ I

t

L------- ------ J

CONTROL AMPLIFIER(PART NO. API 1)

PPC VALVE(PART NO. 694586)

/_ spRk/ ‘ucT’O:RF.~,RF~

‘.. k,..,,,;;.,.

FEEDBACKTRANSDUCER

7*ICONNECTED TO SYSTEM 1PRESSURE VIA INTERNAL DRILL

For additional information - call your local122 Parker Fluidpower Motion & Control Distributor.


Peak PressureEven with a short response time for maximum tominimum volume, there is a peak pressure for a shorttime which is greater than the set pressure of the com-pensator. The peak pressure depends on the volume ofthe system, on the working pressure and on the outputof the pump.

For systems where pressure peaks could exceed pumpcontinuous pressure rating by 150!0, a relief valve mustbe used to eliminate hydraulic shock. The pressuresetting of the relief valve should be 300 PSI (21 bar)above the compensator setting. This relief valve also func-tions as an ultimate system protection in the case of acontrol circuit failure.

Power Consumption

The power consumption (P) of the pump is the productof the flow rate (Q) and the pressure (p) and dependson the efficiency. With constant flow rate, the power con-sumption increases with pressure. When the workingpressure reaches the compensating pressure, the flowrate will reduce to that required by the system and thepower consumption will reduce. The performancecharacteristic shows the relationship that power con-sumed has to flow rate and pressure. In a partly com-pensated position, where the system is demanding someflow, a typical power consumption would beat point PI.

If no flow is required, the power consumption point wouldbe Po.

tQ (FLOW), P (POWER)

I Q MAX.

P (PRESSURE)

Performance Characteristic Power Consumption


Motion&Contml 123

Variable Volume Vane PumpsTechnical Information Series PVV 125/142

Performance DataBased On Oil Temperature of

1200 RPM

110 “F. (43 “C.) (130 SSU) Atmospheric Inlet

PVV 125 1800 RPM100

(379.0)

(3032:

(227~~

(151:;

(75%!

o0 500 1000 1500 2000 2500

(34) (69) (103) (136) (172)

-L

100(379.0)

(3032;

(227t~

(151%

(75%

o0 500 1000 1500 2000 2500

(34) (69) (103) (138) (172)

PRESSURE- PSI (BAR) PRESSURE- PSI (BAR)

1200 RPM PVV 142 1800 RPM100

(379.0)

(3032!

(227!$

(151%!

(75;;

o0 500 1000 1500 2000 2500

(34) (69) (103) (138) (172)

PRESSURE- PSI (BAR)

NOTE: The efficiencies and data in the graph are nominalvalues and good only for pumps running 1800 RPM andstroked to maximum. To calculate approximate horse-power for the other conditions, use the following formula:

‘p= [Q:7~~’)1 +‘cHP)x +Actual GPM is directly proportional to drive speed andmaximum volume”setting. Flow loss, however, is a func-tion of pressure only.

PRESSURE– PSI (BAR)

WHERE:

Q=Psl =

CHp =

N=

Actual Output Flow In GPM

Pressure At Pump Outlet

Input Horsepower @ Full Compensation @1800 RPM (from graph read at operatingpressure)

Drive Speed In RPM


Motbn & Control 125.


Performance Data — Horsepower Control Option (Code “H”)Typical Input Horsepower Required & Flow Characteristics vs. Pressure

(At Various HP Limiter Settings)

PVV 1251200 RPM

~ (3032?

g

aIll

Z (2273ox

~ (151 i!n-1

~

y (75%

g

-1I-L o

0 500 1000 1500 2000 2500(34) (69) (103) (138) (172)

PRESSURE–PSI (BAR)

1200 RPM

~ (303%

~

nU.1~ (227!!!g

~ (151:?n--1

~

y (75%!

~AL o

0 500 1000 1500 2000 2500(34) (69) (103) (138) (172)

PRESSURE–PSI (BAR)

1800 RPM

% (303%~

Lwmcc (227~~or

s (151:?aJ

~

y (75:!

~

JL o

0 500 1000 1500 2000 2500(34) (89) (103) (138) (172)

PRESSURE- PSI (BAR)

PVV 1421800 RPM

K (303%!g

LU.1

: (227%g

3 (151%n-1

~

y (75%

~

JLL o

0 500 1000 1500 2000 2500(34) (69) (103) (138) (172)

PRESSURE- PSI (BAR)



Dimensions — Standard Remote Compensated Pump(Rear Ported)

Millimeter equivalents far inch dimensions are shown in (**)

VOLUME STOPGAIN 570/oOFFULL FLOW PER TURN

w‘1-FX%T

MAX. VOLUME STOP OPTION8.75 (222.25) MAX.L.H. ROTATION SHOWN,OPPOSITE SIDE ON R,H. ROTATION PUMP

(1

B

,990 (25.15)I ,890 (22.61) 1

-I—!—U———I———W

a II D II I

TOP VIEW

INLET PORT PER 2-1/2” SAE J4 BOLT FLANGE POFIT

REAR VIEW

--J--(119.38)

MAX.

t5.66

(148.84)MAX.

J_

A l?(’). .

IDE KEY

---~FL-(~:~INLET & OUTLET PORTS (66.55)

SIDE VIEW

g

6.I?IOO(152.40)5.998 (152.35)

~ DIA.

1.946 (49.43)1.936 (49.17)

1.750 (44.45) DIA,1.748 (44.40)

5.22 Mm,‘(132.59)

tERT7iGlCLEARANCE FOR 314°HEX HEAD BOLTS1-3/4” LONG2 PLACES

--Kx”-M+H?-f

\12--t

IJ

FRONT VIEW


MotiOn&Contml 127


Dimensions — Thru-Shaft PumpMillimeter Equivalents For Inch Dimensions Are Shown In (*•) I

OUTLET @

o)

‘“- MOUNTING SURFACE X

o)

,I r(i35:73)7- -.

t-(1%5)+

F MOUNTING

w1 r J

INLET @A%’x *I kl=JTL

I II F--JR-IIo

6– ~

PVV 142 Side Ported & Rear Mount Variations Shown

@ see standard pump for dimensions not shown.@ These variations correspond to SAE standards for 2 bolt, short straight shaft,

flange mount pumps.

3. Compensator not shown for clarity of pump.

Variation l~lhl “A A IA I[ t 1 t I

t CAU 12.04 4.188 3.25113.252 1“e ‘E ‘ ‘“n’0 Thd. Thru ,-?$?...I ‘m” i (305.82) I (106.38) I f62.58/82.60) i ‘“o- ‘o “’U-CD# , , (tJ/.tJz]

@ 68 I‘‘2”54‘ ‘5“750‘ ““m’t4”002(318.52) (146.05) (101.83/101 .65) “2-’3 ‘NC-2B ‘hd’ ‘hru (7?6°:1)

PUMP ONLY

----- . ---

IA . . t 13.54 I 7.125 ! 5.001/5.002 I -, . . . . .. ---------- -, I 4.24 I ~////~~L”w ‘b (343:92) (160.96) (127.031127.05) 3’6-’ ‘ ‘NL-ZB ‘ ‘a” ‘ ‘ru (107.70)

@ 6D13.54 9.000 6.001/6.002 314-IO UNC-2B Thd. Thru 4.06

(343.92) (228.60) (152.43/152.45) - (103.12)

6BH 12.54 5.750 4.001/4.002 1/2-13 UNC-2B Thd. Thru 3.41(318.52) (146.05) (101.63/101 .65) (86.61)

SECTION z%%

I PUMP


Variable Volume Piston PumpsTechnical Information Series PVV 125/142

Dimensions — Electrohydraulic Pump SAE—6 PORT (FOR 2 PUMPr SERVO OPERATION)

Millimeter equivalents for inch dimensions are shown in (**)PPCCONNECTORMS3101ll14S-2P(MATESWITHMS3106A14S-2S)(PARKERP/NS00771)

REMOTE PRESSURE CONTROL PORT (PCC ATTACHPOINTFOR SERVO VOL. AND/OR PRESS.) SAE4 STR. THD, PORT.OPTION “M” INCLUDES4 STR. THD. PLUG.OPTION “A” INCLUDES ORIFICE FITTING W/—6 SAE MALE STR :SCREENWL%7P’LO-NTHD’. . .

(203.96)-Ax

..“’%Q!TF~’”’’oNs“$’’41) ~ LEH HAND PUMP SHOWN

(OPPOSITE SIDE FOR R,H. PUMP)

NOTES:1. Consult factory for information relative to pump option selection

and additional components required for desired pump function.2. For electrohydraulic flow and pressure control of one or two

pumps make electrical connections per Fig. IV.When one pumpis used, omit connections to pump #2 feedback.

3. For electrohydraulic flow only, eliminate pressure commandsignal and place jumper between “Press CMD” and “ + 10V”terminals (compensating pressure will be controlled by manualadjustment on the remote compensator).

4, For electrohydraulic pressure only, eliminate volume commandsignal, and place jumper between “VOL CMD” and “ + 10V”terminals or use 801179 pressure driver card.

5, Figures I thru Ill show nominal input vs. output relationships. Theactual values will vary with component tolerances. Full volumerange will be realized with O to 7 volts. Full pressure range willbe realized with O to 8 volts, or O-600MA.

\ c&JTRoLOPTIONS PI& SI

M, ME, A,S & SE

I L-IElL!i!i”l!3_..~ FEEDBACK CONNECTOR MS3102R14S-2PY(MATESWITH MS3106A “- ‘-’”

Alliil8.03 OR PARKERP/h! 800772

I J7’KPYYuH A

Volume Command VoltageNominaloutputflow vs. input commandvoltage when used in conjunction withAPI 1 (single pump amp.) and 694586proportional pressure controller.

FIG. I

wt

I AP’11 -Single PumpI AP211 - Double Pumo I

Typical Hookup for Infinitely VariableElectrohydraulic Press and Volume Control

2500

w 2000+a=) = 1500nu)~ U 1000

0 g 500m MIN.

01234567 PRESS.

Pressure Command VoltageNominal output pressure vs. input com-mand voltage when used in conjunctionwith API 1 or AP211 and 694586 pro-portional pressure controller.

FIG. II

FIG. IV

2500

2000

1500

1000

500m MIN.

o 200 400 6L)o PRESS.

Input Current (MA)Nominal input current vs. pressurewhen usedin conjunction with a currentsource and proportional pressure con-troller 694586.

FIG. Ill


Motion& control 129


Dimensions — AccessoriesMillimeter Equivalents For Inch Dimensions Are Shown In (**)

Foot Mounting BracketPart No. 800407

Two Pump Mount BoltsPart No. 800447

p(l:fio)--j-(l:.h)+

6.0026.004

DIA.

T(d

F

10.00(254.00)

REF.

6;0)

1.87

-i47.50)

T

SAE D

—

Flange KitsAll Flange Kits Include Flange,O-Rings and Cap Screws. SeeOrder Sheet For Part Numbers,

For Inlet Port2-1 i2° SAE

2-1 /2” N. P.T.F.

+---+-+-II--4- 3.50 “’:w’&

/!f9’4q--lx ‘T ,.!R.,‘, /“

wi.!!_l(88.90) )

. ..-.

+ t

O-RING #2232N-9CAP SCREW #10 X 295(1/2-13 X 2“)(4 REQUIRED)

For Outlet Port2“ SAE

2“ N. P.T.F.

7

3.81rd(96.77)

—(:ZY3)

—

T

4.003,06 (101 .80)

(77.72))

1

O-RING #2228N-9CAP SCREW #10 X 294(1/2-13 X 1-3/4”)(4 REQUIRED)



Variable Volume Vane PumpsOrdering Information Series PVV 125/142

E?E?Series

WW7 PControlOptions

PumD Displacement Pressure Shaft Po’rts Rotation* VariationsVane Type “ Ra

VariableDisplacement

ge

I

EDesignSeries

‘Not requiredwhen orderingEE3

I

Pressure Range

10 I 450” — 1000 PSI (69 Bar) EEi!a 1I 20 I 450’ –2000 PSI (138 Bar) 1

I PVV 125 Onlv I I ‘Viewed from shaft end !

i----l1 -. t

Variations

Omit I Standard Pum~ I

I 2 ] Maximum Volume StoD I

3 I Vanes For 5606 Applications1

P====i(Std.) Remote Comp. (Internal Sensing)

Remote Como. (External Sensina)

6D I SAE D—Rear Mount-Short Shft.

6C SAE C—Rear Maunt -Short Shft.

I 6B I SAE B–Rear Mount-Short Shft. I

E==aPress. & Flow Comp, (Load Sensing) .

Servo Vol. & Press. (Internal Sensing)

Servo Vol. & Press. (External Sensing)

Servo Vol. & Press. (Intawal PPC)

I 6BH I SAE B–Rear Maunt-2.10/2.35 Lena Shft. I

SAE A Flange—Rear Mount6AH +.750 Shaft - 1.40/1 .80 Long

6T Thru-Shaff & Cover—(No Adapter)

I Pi I Servo Pressure (Integral PPC) I

1 H I Horsepower (Torque) Control I“S and SE options include remote compensatorand feedback assembly.

Accessories for S & SE Options

PPC Valve (2500PS1/172 Bar Max.) I 694566Requires amplifier board, special sequence valve,proportional pressure controller and connectorsfor operation.

I Amo. Sinale Pumo I AP1l I

Amp. Double Pump AP211

Closed Loop Feedback Card AF1O

Sequence Valve SX6PM8

(40 GPM/151,6 LPM Max.) SX6VM8

PSI Drive Card 801179

‘ PPC Valve (3000 PSI1207 Bar) 801186

PPC Valve (5000 PS1/345 Bar) 801187

I Current to Voltaae Conv. Card I 601221 I

“ Should only be used with 601179 PSI Drive Card.


Mobn &Contml 131

Variable Volume Vane PumpsOrdering Information Series PVV 125/142

Accessories

FTElectrohydrsulic

Cable

l-a I

NOTE:1. Standard Pump Feedback to Amplifier Connector — EHC’4YB2. Standard PPC Valve to Amplifier Connector — EHC’AB

Flange KitKit Includes Flange Bolts And O-Ring. These Are 4-Bolt SAE Style Flanges

IdSize

32 2“

40 2-1 /2” ElPorts

1 NPTF

4SocketWeld

23A

Seals

A Buns N

Weight and Package Size

ModelWeight Length From Mounting Height In I Width In

In Pounda Face In Inches (CM) Inches (CM) Inches (CM) I~W 125--1- 167 I 9.57 (24.31) I 16.00 (40.64) I 15.30 (38.86) I

I PW 142 I 167 I 9.57 (24.31) I 16.00 (40.64) I 15.30(38.66)1

,

I

Connector Tvtre

1 B I Terminal ConnectorI

ElA

DesignSeries



Variable Volume Vane PumpsInstallation Information Series PVV

Standard Pump Assembly

VOLUME STOP ADJOPTION 2

200 ~.-LB. TORQUEAT TEST

\

&%%

25 IT-LB. TORQUE \\4 PLACES

7INSTALL W/LOC

&

,P ,?

ON O,D.

!

@ ‘;/ p

% ; ,9’< m \~@ 45 FT.-LB. TORQUE

4 PLACES

,,.”,r, L,- ,,,l-””, ,,L

“#’ MOUNT KEY ON ROTOR

\\’ @ \ klf%?[zR&:%!:LEDI1.

@\

/p%%

NOTE: HALF VANESTRAIL FULL VANES—

UNPLATEDVANES— VARIATION3

B ;/”

// /

/

r..\&X-$4I

‘i .!tgg‘1k,\. e PLATED VANES

\u Awn m /p~ w“’ //\ //////

‘%45 R.-LB. TORQUE. . . . m.-..

O NOTE: PUMP WITH CW ROTATIONSHOWNFOR CCW ROTATION REFER TONOTES BELOW

@ USE LEH HAND (CCW) PORT PLATE

@ USE LEFT HAND (CCW) THRUST PLATE

@ FULL VANES LEAD IN DIRECTION OF ROTATION

@ - @ SERVO& BIAS PISTON ASSEMBLYINSTALLED TO OPPOSING SIDE

@ INSTALL COMP. SEAL PLATE W/DESIRED ROTATION UP,SEE SHEET 2

@ LIGHTLY STONE SURFACE FREE OF BURRS.

//

//

//


134

Variable Volume Vane PumpsSeries PVV

-..

,,,>4.tlACK SCREW—2 REQDFOR DISASSEMBLYUSE ONLY.

/

II I !~’ 300 FT.-LB.TORQUE /<\v

//

\\ THRU-SHAFT

/’ OPTION 6

~.fi // / \

0

// \ /’/ /// /

/ // /

/ // /////

Standard Remote Compensator Assembly

.

dflII-,1-

9 FT.-LB.,,

TORQUE .

“A’ OPTION—ORIFICE ASSY. -.IO H.-LB. TORQUE ,,, I .;.1

/-25 FT.-LB.TORQUE

ING UP.

D

(ITEM INSTALLED INTO SPOOL W/LOCTITE @ 10 IN-LB. TORQUE)

‘FORM O-RINGS TO INSIDE 01COMPENSATOR SEAL PLATE

THRU-SHAFTCOVER

Horsepower Control Option”

Hydraulic Pump/Motor DivisionOtsego, Ml 4907’8

Motion&Control 135


4 PLACESLVDT ASSEMBLY

Thru-Shaft (Option 6) Assembly

“‘ Jx-2A

ADIMENSIONFROM MOUNTING FACE

ON KEY AT AS{EMBLY ~w -

WHEN IDLER IS MOUNTED TO SPLINE SHA17THERE IS TO BE AT LEAST .007” PLAY (RADIAL)SETWEEN PARTS,

136



Horsepower Limiter Option

TORQUE LIMIT ADJUSTMENT

REMOTE PILOT PORT. MAY BEUSEDFORREMOTEMAXIMUMPRESSURECONTROL

DRAIN PORT MUST BE CONNECTEDUNRESTRICTED TO TANK

HORSEPOWER CONTROL ASSEMBLY“H” OPTION

NOTE: ASSEMBLY FOR L.H.(CCW)PUMP SHOWN HERE —FOR R.H. (CW) PUMP, H.P. ASSY.INSTALLED TO OPPOSITE SIDEAND ROTATED 180°


Motion&ContJWl 137

Date post:	25-Mar-2021
Category:	Documents
Upload:	others
View:	4 times
Download:	0 times

Variable Volume Vane Pumps · 2010. 6. 4. · Variable Volume Vane Pumps Introduction Series PVV...

Documents