Parker Piston Pumps | P1 Series

Parker P1 Series Piston Pump

Parker P1 Series Piston Pumps

The Parker P1 Series hydraulic piston pump is a medium-pressure, variable displacement piston pump engineered for open-circuit mobile hydraulic applications. Designed to increase productivity and improve system efficiency, the P1 Series features a robust cradle-bearing design, a wide operating temperature range, and full power thru-drive capability for maximum versatility in demanding environments.

Equipped with Parker’s innovative “ripple chamber” technology, the P1 piston pump minimizes pressure pulsations and significantly reduces noise levels—creating a quieter, more efficient working environment. With lower power consumption, reduced heat generation, and an optional torque limiter, the P1 Series delivers reliable performance, precise control, and long service life in mobile hydraulic systems.

Technical Specifications

  • Maximum Vacuum Flow Rate: n/a
  • Operating Pressure: 280 bar, 4000 psi
  • Technology: Hydraulics
  • Flow Rate: 278 L/min, 73 gal/min
  • Displacement: 140 cm3/rev, 8.5 inch3/rev
  • Body Material: Cast Iron
  • Drain Option: Yes
  • Charge Pump Included: No
  • Circuit Path: Open
  • Configuration: Single, Tandem, Multiple
  • Control Method: Pressure Limiter, Load Sense, Electronic Control, Unloading, Proportional, Fan Drive
  • Energy Recovery Capability: Yes
  • Filter Included: No
  • For Fluid Type: Standard Hydraulic Fluids
  • Maximum Displacement: 140 cm3/rev, 8.5 inch3/rev
  • Maximum Flow Rate: 73 gal/min, 278 L/min
  • Maximum Fluid Temperature: 95 °C, 200 °F
  • Minimum Fluid Temperature: -40 °C, -40 °F
  • Maximum Noise Level: 87 dBA
  • Maximum Operating Pressure: 280 bar, 4000 psi
  • Radial Load Capacity: 160-594 lb-ft
  • Maximum Operating Speed: 3300 RPM
  • Maximum Kinematic Viscosity: n/a
  • Minimum Kinematic Viscosity: n/a
  • Weight: 14 to 82 kg, 30 to 180 lb
  • Media: Hydraulic / Liquid, Hydraulic Fluids, Liquids
    Mounting Option: SAE, ISO
  • Port Connection: SAE, ISO, BSPP
  • Port Type: Flange, Straight Threaded
  • Port Location: Side Ports, Rear Ports, Opposing Ports
  • Pump Type: Piston, Variable
  • Direction of Rotation: Clockwise, Counterclockwise
  • Sensor Type: Displacement & Pressure
  • Shaft Type: SAE, ISO
  • Thru-Drive Capability: Yes

Key Benefits

Increased productivity

  • Proportional electric controls that provide flow on demand
  • Large stroking pistons for fast, stable response
  • Full power thru-drive capability

Improved reliability

  • Elastomer seals that eliminate gaskets and external leakage
  • Low friction cam and taper-roller shaft bearings
  • Industry-low viscosity capability

Design flexibility

  • Case drain port for horizontal or vertical shaft-up mounting
  • Optional maximum and minimum volume stops
  • End or side inlet and outlet ports
  • Small envelope size
  • Wide range of controls

Ease of use

  • Low noise nine-piston design
  • Hydraulic controls with “no leak” adjustments
  • Fewer parts for easier maintenance

Examples of Suitable Applications

  • Fan Drives
  • Fire Trucks
  • Concrete Pumps
  • Chemical Pump Trailers
  • Backhoes
  • Bulldozer
  • Front Loaders
  • Winches
  • Log Splitters
  • Casing Jacks
  • Cargo Winches
  • Material Grinders/Chippers

Let's Talk

Let WIT experts answer your questions or get you started with a quote for your project.