Parker Hydraulics Pump Motor Division

Hydraulic Pump/Motor Division


John Duba Product Manager Piston Pumps


Otsego Core Competency...


PAVC Series : 4 displacements from 33-100 cc/r , 207 Bar , 3000 RPM

PVP Series : 9 displacements from 16-140 cc/r , 250 Bar, 3000 RPM

PV Plus : 12 displacements from 16-270 cc/r , 350 Bar, 2750 RPM

PHP Series : 3 displacements from 10-60 cc/r , 350 Bar, 3000 RPM

P2 Series : 4 displacements from 60-145 cc/r , 320 Bar, 2800 RPM

P3 Series : 3 displacements from 60-145 cc/r , 320 Bar, 2800 RPM

Piston Pumps


PAVC Piston Pumps


PAVC Hydraulic Pump Series


Displacement cc/rev. 33 38 65 100Max Pressure Continuous (psi) 3000 3000 3000 3000Max Pressure Peak (psi) 3600 3600 3600 3600Self Priming Speed (rpm) 3000 3000 3000 2600


PAVC Piston Pump


Features and Benefits

High Self Priming Speed

Operation at high altitudes

PAVC Piston Pump

Fluted Barrel provides supercharge to pump inlet


PAVC Piston Pump


Cartridge Style Controls

Results in a Compact Design

(No Control hanging off the side)

Easily Convertible from one Control TypeTo Another


PAVC100 Rexroth A10V100

11.158.5

PAVC Piston PumpCartridge Style Controls Results in a Compact Design


PAVC Piston Pump


Air Bleed is Standard.

Easy Priming

No Internal Shaft Bearings

Roulon Journal Bearing Supports the Barrel

Pump can run on water Glycol to Full Rating


PAVC Piston Pump

PAVC33/38

Control Drain can be pressurized to 100 psi

Can use oil for cooling or filtering

PAVC100


PAVC Piston Pump


PAVC100 is available with thru drive option

SAE AA, A, B, C Mounts

Both Spline and Keyed Shafts


PAVC Piston Pump

Outlet PortRear Inlet Port


PAVC Piston Pump

Load Sense / Remote Port

Control Drain

Air Bleed Drain


PAVC Piston Pump

Options : Porting Flexibility

Dual InletSpecial

Top or BottomTop

Either Side

Optional Inlet Port

RearRearRearStandard Inlet Port

TopTopTopOutlet Port

1006533/38

Red are

Specials


PAVC Piston Pump

Options : Port Connections

SAE 47/16-20 UNF

SAE 47/16-20 UNF

SAE 47/16-20 UNF

Signal Port

SAE 69/16-20 UNF

SAE 69/16-20 UNF

SAE 47/16-20 UNF

Control Drain

2 inch 4 Bolt Flange

1-1/2 4 Bolt Flange

1-1/4 4 Bolt Flange

Optional Inlet Port

2 inch 4 Bolt Flange

SAE 241-7/8-12 UNC

SAE 201-5/8-12 UNC

Rear Inlet Port

SAE 201-5/8-12 UNC

SAE 161-5/16-12 UNC

SAE 121-1/16-12 UNC

Outlet Port

1006533/38

There are metric equivalents readily available


PAVC Cutaway View


PAVC Cutaway


PAVC Piston Pump

Options : Mounting / Shafts

SAE C & CC Spline & Key

SAE B& C Spline & Key

SAE B Spline & Key

# 9 BearingShafts

C,CCCB, BBKeyed Shafts

C,CC, DB,BB,CB, BBSpline Shafts

SAE B2 Bolt

OptionalMounting

SAE C2 Bolt

SAE C2 Bolt

SAE B 2 Bolt

StandardMounting

1006533/38

Red are

Specials


PAVC33/38 SAE B 2 or 4 Bolt mounting capability

PAVC65 SAE C 2 or 4 Bolt mounting capability

Multiple mounting configurations


PAVC100 SAE C 2 or 4 Bolt mounting capability

Multiple mounting configurations


PAVC Piston Pump


Dual bearing vs single bearing shaft option Use single bearing design only when direct drive Use dual bearing on all other applications such as drive line, U-joint, belt drive

Single bearing design Dual bearing design


PAVC Piston Pump


o Pressure Compensator The pressure compensator control will limit pump

outlet pressure to a predetermined level and adjust pump outlet flow to the level needed to maintain the set pressure.

o Remote Pressure Compensator

Same as the pressure compensator , except that the adjustment is done with a remotely located relief valve instead of at the pump control.

o Load Sense Control

Load sense control will adjust output flow to maintain a constant pressure drop across an orifice.

Torque Limiter Control

Will adjust flow to limit the input torque demand of the pump.

PAVC Piston Pump


Pressure Compensator

Model Code Omit

Cartridge Style

Adjustable Range 400-3000 PSI

PAVC Controls



View Shows Pressure is below the Compensator Setting and the Pump is at Full Stroke.

PAVC Controls


PAVC Controls


View Shows Compensator Setting Reached and Pump Destroked. The pump will actually provide the flow required to maintain the set pressure.


Pressure Compensator Adjustment

PAVC Controls


Remote compensator allows control of pump from a remote location using a relief valve located in a different location.

Remote Compensator

PAVC Controls


Remote Pressure Compensator

Model Code M

Cartridge Style

Differential Spring is Factory Set at 150 PSI for PAVC 33/38/65at 300 PSI for PAVC 100.

Pressure Compensator Setting is the Sum of the remote relief valve and the differential setting.

PAVC Controls



PAVC Controls

View Shows Pressure is below the Remote Pressure Control Setting and Pressure Compensator Setting, so the Pump is at Full Stroke.



PAVC Controls

View Shows Pressure has reached the Remote Pressure Control Setting, so the Pump is destroked. The pump will provide the flow required to maintain the set pressure .


Load Sense control will match the output flow to the circuit demand at a pressure slightly above the load pressure.

Load Sense Control

PAVC Controls


Load Sense &Pressure Compensator

Model Code A

Cartridge Style

Differential Spring is Set at 200 PSI for PAVC 33/38/65360 PSI for PAVC 100.

Differential Adjustment Range200-300psi for PAVC33/38/65360-460psi for PAVC100

Standby Pressure is additive to load sense differential 70 psi higher for PAVC33/38/65140 psi higher for PAVC100

PAVC Controls


Load Sense Control

PAVC Controls

View Shows the flow control adjustment is open , with a pressure drop below the differential adjustment setting. The Pump is at Full Stroke.


Load Sense Control

PAVC Controls

View Shows the Flow Control Adjustment has restricted flow and the pump has destroked . The pump will provide the flow required to maintain the differential pressure .


Pressure Compensator Adjustment

PAVC Controls

Remote Control or Load Sense Port


PAVC Controls

Pressure

F

l

o

w

TheoreticalConstant HP

Torque Limiter Pump Curve

Torque Limiter Control


.

Power Control

Piston

Torque Limiter & Load Sense with Pressure Compensator

Model Code C

Cartridge Style

Customer needs to specify the setting desired in HP at a particular drive speed and compensator setting.

PAVC Controls


Power Control

Piston

Torque Limiter ControlView Shows the pump is at a low stroke , and the power control piston is developing a higher force on the horsepower spring. The pump will go to higher pressure before it begins to destroke .

PAVC Controls


Torque Limiter ControlView Shows the pump is

at a high flow condition , and the power control piston is developing a light force on the horsepower spring. As system pressure increases, the pump will destroke to limit the input torque demand of the pump.

Power Control

Piston

PAVC Controls


PAVC Torque ControlNote:

Performance at

other drive speeds

can be extrapolated


PAVC Torque Control

At HP Settings below the compensator setting curves, the pump will not achieve the full pressure compensator setting. At settings below the Full Flow Boundary line , full flow may not be obtained at low operating pressures.


PAVC Control Conversions



SAE 4 PlugOpenOpen

Orifice Plug

M Remote Control

SAE 4 PlugOpen

Orifice Plug

1/16 Pipe Plug

C Torque Control

SAE 4 PlugOpen

Orifice Plug

1/16 Pipe Plug

A Load Sense

SAE 4 Plug

SAE 4 Plug

Orifice PlugOpenOmit Press Comp

4321Control Option



-When converting to torque control , one also needs to add Torque Control Adjustment Kit

Cam FollowerDart

SpringAdjustment SeatNuts


PAVC Air Bleed

Always connect PAVC air bleed to aid in primingPAVC Installation Data


Never mount pump inlet down when drawing vertical suction lift. Only use bottom inlet if flooded.

PAVC100 Bottom Inlet

PAVC Installation Data


PAVC Specials

PAVC33/38 With SAE BB Spline Shaft

PAVC65 with SAE B Pilot and B or BB Spline Shaft

PAVC65 with Dual Inlet Ports or Top Inlet Port

PAVC33/38/65 with Access for Speed Pick Up

Load Sense Bleed Option

PAVC65 with Sculptured Housing

PAVC65 overstroked 10 % ( derated to 2500 PSI & 2500 RPM )


PAVC Piston Pump

Harsh Enviroment Seal

XXSAE C Keyed & C Mount

XXSAE C Spline & C Mount

XSAE B Spline & B Mount

PAVC1009PAVC659


Thank You!!!

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