Hydraulic Pump/Motor Division. John Duba Product Manager Piston Pumps. Hydraulic Pump/Motor Division

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1 John Duba Product Manager Piston Pumps

2 Otsego Core Competency...

3 Piston Pumps PAVC Series : 4 displacements from cc/r, 207 Bar, 3000 RPM PVP Series : 9 displacements from cc/r, 250 Bar, 3000 RPM PV Plus : 12 displacements from cc/r, 350 Bar, 2750 RPM PHP Series : 3 displacements from cc/r, 350 Bar, 3000 RPM P2 Series : 4 displacements from cc/r, 320 Bar, 2800 RPM P3 Series : 3 displacements from cc/r, 320 Bar, 2800 RPM

4 PAVC Piston Pumps

5 PAVC Hydraulic Pump Series Displacement cc/rev Max Pressure Continuous (psi) Max Pressure Peak (psi) Self Priming Speed (rpm)

6 PAVC Piston Pump

7 PAVC Piston Pump Features and Benefits High Self Priming Speed Operation at high altitudes Fluted Barrel provides supercharge to pump inlet

8 PAVC Piston Pump Features and Benefits Cartridge Style Controls Results in a Compact Design (No Control hanging off the side) Easily Convertible from one Control Type To Another

9 PAVC Piston Pump Cartridge Style Controls Results in a Compact Design PAVC100 Rexroth A10V

10 PAVC Piston Pump Features and Benefits 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

11 PAVC Piston Pump PAVC33/38 PAVC100 Control Drain can be pressurized to 100 psi Can use oil for cooling or filtering

12 PAVC Piston Pump Features and Benefits PAVC100 is available with thru drive option SAE AA, A, B, C Mounts Both Spline and Keyed Shafts

13 PAVC Piston Pump Outlet Port Rear Inlet Port

14 PAVC Piston Pump Load Sense / Remote Port Air Bleed Drain Control Drain

15 PAVC Piston Pump Options : Porting Flexibility 33/ Outlet Port Top Top Top Standard Inlet Port Rear Rear Rear Optional Inlet Port Either Side Top Top or Bottom Special Dual Inlet Red are Specials

16 PAVC Piston Pump Options : Port Connections 33/ Outlet Port SAE /16-12 UNC SAE /16-12 UNC SAE /8-12 UNC Rear Inlet Port SAE /8-12 UNC SAE /8-12 UNC 2 inch 4 Bolt Flange Optional Inlet Port 1-1/4 4 Bolt Flange 1-1/2 4 Bolt Flange 2 inch 4 Bolt Flange Control Drain SAE 4 7/16-20 UNF SAE 6 9/16-20 UNF SAE 6 9/16-20 UNF There are metric equivalents readily available Signal Port SAE 4 7/16-20 UNF SAE 4 7/16-20 UNF SAE 4 7/16-20 UNF

17 PAVC Cutaway View

18 PAVC Cutaway

19 PAVC Piston Pump Options : Mounting / Shafts Red are Specials 33/ Standard SAE B SAE C SAE C Mounting 2 Bolt 2 Bolt 2 Bolt Optional SAE B Mounting 2 Bolt Spline Shafts B, BB B,BB,C C,CC, D Keyed Shafts B, BB C C,CC # 9 Bearing SAE B SAE B& C SAE C & CC Shafts Spline & Key Spline & Key Spline & Key

20 Multiple mounting configurations PAVC33/38 SAE B 2 or 4 Bolt mounting capability PAVC65 SAE C 2 or 4 Bolt mounting capability

21 Multiple mounting configurations PAVC100 SAE C 2 or 4 Bolt mounting capability

22 PAVC Piston Pump

23 PAVC Piston Pump

24 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

25 PAVC Piston Pump

26 PAVC Piston Pump

27 PAVC Piston Pump o o 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. 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. 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.

28 PAVC Controls Pressure Compensator Model Code Omit Cartridge Style Adjustable Range PSI

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

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

31 PAVC Controls Pressure Compensator Adjustment

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

33 PAVC Controls Remote Pressure Compensator Model Code M Cartridge Style Differential Spring is Factory Set at 150 PSI for PAVC 33/38/65 at 300 PSI for PAVC 100. Pressure Compensator Setting is the Sum of the remote relief valve and the differential setting.

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

35 PAVC Controls Remote Pressure Compensator 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.

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

37 PAVC Controls Load Sense & Pressure Compensator Model Code A Cartridge Style Differential Spring is Set at 200 PSI for PAVC 33/38/ PSI for PAVC 100. Differential Adjustment Range psi for PAVC33/38/ psi for PAVC100 Standby Pressure is additive to load sense differential 70 psi higher for PAVC33/38/ psi higher for PAVC100

38 PAVC Controls Load Sense Control View Shows the flow control adjustment is open, with a pressure drop below the differential adjustment setting. The Pump is at Full Stroke.

39 PAVC Controls Load Sense Control 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.

40 PAVC Controls Remote Control or Load Sense Port Pressure Compensator Adjustment

41 PAVC Controls Torque Limiter Control Theoretical Constant HP Flow Torque Limiter Pump Curve Pressure

42 PAVC Controls Torque Limiter & Load Sense with Pressure. Compensator Model Code C Cartridge Style Power Control Piston Customer needs to specify the setting desired in HP at a particular drive speed and compensator setting.

43 PAVC Controls Torque Limiter Control Power Control Piston View 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.

44 PAVC Controls Power Control Piston Torque Limiter Control View 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.

45 PAVC Torque Control Note: Performance at other drive speeds can be extrapolated

46 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.

47 PAVC Control Conversions

48 PAVC Control Conversions Control Option Omit Press Comp Open Orifice Plug SAE 4 Plug SAE 4 Plug A Load Sense 1/16 Pipe Plug Orifice Plug Open SAE 4 Plug C Torque Control 1/16 Pipe Plug Orifice Plug Open SAE 4 Plug M Remote Control Orifice Plug Open Open SAE 4 Plug

49 PAVC Control Conversions -When converting to torque control, one also needs to add Torque Control Adjustment Kit Cam Follower Dart Spring Adjustment Seat Nuts

50 PAVC Installation Data Always connect PAVC air bleed to aid in priming PAVC Air Bleed

51 PAVC Installation Data Never mount pump inlet down when drawing vertical suction lift. Only use bottom inlet if flooded. PAVC100 Bottom Inlet

52 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 )

53 PAVC Piston Pump Harsh Enviroment Seal SAE B Spline & B Mount SAE C Spline & C Mount SAE C Keyed & C Mount PAVC659 X X X PAVC1009 X X

54 Thank You!!!

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