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Parker p1 piston pump

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Catalog Overview

Document Number: HY28-2665-01/P1/EN
Effective Date: November 2019
Manufacturer: Parker Hannifin Corporation, Hydraulic Pump and Power Systems Division

Product Introduction

The P1/PD Series consists of variable displacement axial piston pumps designed specifically for open-circuit mobile hydraulic applications. These medium-pressure pumps deliver continuous operation at pressures up to 280 bar (4,060 psi) with short-term intervals up to 350 bar (5,075 psi).

Core Features and Benefits

  • Quiet Operation: Unique “ripple chamber” technology minimizes pressure pulsations and noise levels
  • Compact Design: Reduced overall package size with high power density for space-constrained installations
  • Efficient Performance: High operating efficiency reduces power consumption and heat generation
  • Robust Construction: Cradle-bearing design for durability in demanding mobile environments
  • Modular Controls: Easy conversion between control options with simple hydraulic interfaces
  • Leakage Prevention: Elastomer seals eliminate gaskets and external leakage points
  • Wide Temperature Range: Suitable for extreme mobile operating conditions
  • Power Thru-Drive: Full power thru-drive capability for maximum system versatility

Model Range and Displacements

Model Series
Displacement (cm³/rev)
Displacement (in³/rev)
P1/PD 018
18
1.10
P1/PD 028
28
1.71
P1/PD 045
45
2.74
P1/PD 060
60
3.66
P1/PD 075
75
4.58
P1/PD 100
100
6.10
P1/PD 140
140
8.54

Technical Specifications

Parameter
Value
Maximum Continuous Pressure
280 bar (4,060 psi)
Maximum Intermittent Pressure
350 bar (5,075 psi)
Maximum Speed (Standard Models)
2,400 rpm
Maximum Speed (High-Speed Models)
3,000 rpm
Minimum Speed
600 rpm
Operating Temperature Range
-20°C to +80°C (-4°F to +176°F)
Fluid Compatibility
Standard hydraulic fluids (mineral oil-based)
Seal Material
Elastomer (eliminates gaskets)

Control Options

The P1 Series offers a comprehensive range of control configurations for application-specific performance:
  1. Basic Controls:
    1. Pressure Limiter (PL)
    2. Load Sense (LS)
    3. Unloading (UL)
  2. Advanced Controls:
    1. Electronic Control (EC)
    2. Proportional Control (PC)
    3. Fan Drive Control (FD)
    4. Torque Limiter (optional)
  3. Special Configurations:
    1. Single, Tandem, and Multiple pump arrangements
    2. High drive speed models for mobile markets
    3. Low noise models for industrial applications

Application Areas

  • Construction equipment
  • Agricultural machinery
  • Material handling systems
  • Mobile work platforms
  • Forestry equipment
  • Municipal vehicles
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