Polyurethane Process Industries, LLC

PU Foam Metering Pumps

Where the customer comes first

Rotary Power Metering Pumps

Rotary Power (RHL Hydraulics) metering pumps represent one of the best values in the industry. They are the product of more than 20 years of development and experience in polyurethane foam processing.

These axial piston pumps are accurate, reliable and efficient, yet cost significantly less than comparable pumps offered by other manufacturers.

Rotary Power metering pumps are designed for high inlet pressures and have been used successfully with all types of polyols and isocyanates (TDI, MDI); polyol blowing agent blends; polyether and polyester resins; and methylene chloride.


  • Fixed or variable displacement, from 2 to 62 cc/rev.
  • Pressure-balanced controls for ease of operation and accurate metering.
  • Adjust flow with handwheel or variable frequency drive.
  • Low fluid temperature throughout the pump.
  • Twin PTFE seals on a ceramic bush allow inlet pressures up to 20 bar (290 psi).
  • Outlet pressures up to 250 bar (3600 psi ); 210 bar with TDI.
  • No-leakage return line; pump is drained internally.
  • All major components treated to minimize corrosion.
  • Cartridge shaft seals for fast, easy replacement.
  • Leakage indicators between shaft seals and at control.
  • Lubrication ports included.
  • Magnetic drive couplings available.

» Contact us for availability and pricing.

Image: Rotary Power C Range PU foam metering pump


» C Range Pumps Data Sheet / PDF 1.08 MB

Related Links:

» Metering Pump Parts
» Best Warranty on Metering Pump Repairs
Rotary Power Metering Pump Performance Data
Model Size cc/rev * Maximum Continuous Speed
** Maximum Continuous Pressure
Maximum Boost Pressure
Maximum Case Pressure
C01 2.0 1800 250  (210 TDI) 20 20
C04 6.0 1800 250  (210 TDI) 20 20
C07 11.5 3000 250  (210 TDI) 20 20
C20 32.0 3000 250  (210 TDI) 20 20
C38 62.0 2000 250  (210 TDI) 20 20
* Reduce maximum allowable speed for high viscosity fluids.
** Reduce maximum allowable pressure for low viscosity fluids.
For flow rates less than 15% of maximum, consult PPI.