P50 P51 GEAR PUMP

  • PGP050/051
    • Flows to 66 GPM
    • Pressures to 3000 psi
    • Speeds to 2400 rpm
    • Priority valves
    • Two-speed valves
    • Unloader valve
    • Winch motors
    • Flow dividers
    • Piggybacks
PARKER P51 GEAR PUMP

H50 P51 Series Rolling Bearing High-Pressure Gear Pump (Motor)

Product Features:

  • Compact structure, small size, low noise, high pressure, and wide flow range
  • High-strength cast iron housing with an external gear pump design
  • Unique secondary sealing structure to effectively enhance gear pump performance
  • Advanced side plate structure with special surface treatment for improved pressure resistance and wear resistance
  • Special bearing support structure, better suited for heavy loads and impacts
  • Standardized, universal, and modular design. Can be configured as double or multi-stage pumps; both pumps and motors provide various mounting and connection options, with dimensions meeting SAE standards

P31/P30 Hydraulic Gear Pump Performance Data

Flow mL/rev G.W in Rated Pressure MPa Max Pressure MPa Speed RPM Highest lowest Input power KW
16.14 1/2＂ 20.7 24.2 2400  600 15.5
24.21 3/4＂ 20.7 24.2 2400  600 23.5
32.28 1＂ 20.7 24.2 2400  600 31
40.39 1 1/4＂ 20.7 24.2 2400  600 38.8
48.42 1 1/2＂ 20.7 24.2 2400  600 46.5
56.49 1 3/4＂ 17.2 20.7 2400  600 43
64.57 2＂ 17.2 20.7 2400  600 49

M31/M30 Hydraulic Gear Pump Performance Data

Flow mL/rev Input Flow
2000 RPM
LPM		 G.W
in		 Rated Pressure
MPa		 Max Pressure
MPa		 Speed RPM Highest lowest Output power KW Output Torque
Nm
32.28 74 1＂ 20.7 24.2 2200 600 20.5 98
48.42 106 1 1/2＂ 20.7 24.2 2200 600 29.5 140.6
64.57 140 2＂ 17.2 20.7 2200 600 32.5 155

Note:
The data in the table represents the average values obtained from a series of experimental tests.

Test Conditions:

  • Oil temperature: 50℃
  • Oil viscosity: 31.8 cSt @ 38℃