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PF4000 Series Pumps


7.7 to 14.0 gpm (29,1 to 53,0 L/min) at 1800 rpm
Rated: 6 000 psi (420 bar), Maximum: 10 000 psi (700 bar)

  • Contamination tolerant, for operation in dirty environments.
  • A wide range of fluid compatibility, for reliable operation with low-lubricity, low viscosity fluids.
  • Bi-directional rotation providing constant flow direction regardless of drive shaft rotation.
  • Shaft Options: Standard keyed, Optional spline.
  • Seal Options: Standard Nitrile, optional Fluorocarbon, or EPR seals for use with some phosphate ester fluids.
  • Split-Flow® models can supply independent flows from up to ten separate outlets.
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Product Specifications

Pump ModelsFlow at 1500 rpm
U.S. gpm | L/min
Flow at 1800 rpm
U.S. gpm | L/min
Rated Pressure
psi | bar
Max. Intermittent Pressure
Max. Intermittent Pressure
Rated Speed
Max. Speed
S.A.E. Outlet Port:
Autoclave/Butech Outlet Port or British Standard Pipe Outlet Port:
PF4011H-306.023,07.327,610 00070010 00070018002400
PF4016H-308.733,110.539,710 00070010 00070018002400
PF4018H-3010.038,112.145,8800056010 00070018002400
PF4020H-3011.443,213.751,9800056010 00070018002400

Pump Selection Notes

  1. Ordering these pumps requires a complete model code specifying seal and port options.
  2. Output flows are based on typical performance at rated pressure with pressurized inlet where required.
  3. Models with the high pressure “H” option require the use of outlet port “A” (Autoclave/Butech fitting) or “B” (British Standard Pipe fitting). Pumps with ports for standard S.A.E. fittings are not recommended for operation above 8000 psi (560 bar). Contact the fitting manufacturer for the pressure rating of the fitting.


3D Model


Inside the Checkball Hydraulic Pump:
Design and Operating Advantages

An introduction to Dynex checkball hydraulic pumps and their unique design which allows them to operate reliably with a wide range of fluids at high pressures.


Split-Flow Hydraulic Pumps for Simplified Circuits

Learn how Dynex hydraulic pumps, with Split-Flow technology, can simplify multiple-function hydraulic systems. With their ability to provide multiple flows from one pump, multiple pumps in a system can be replaced by one Dynex multiple-outlet pump.


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