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Industrial duty high pressure positive displacement triplex plunger pumps.

Long lasting, dependable pumps for demanding applications including CO2 extraction, washdown, mist cooling, humidification, odor control, and other uses. Multiple models of piston and plunger pumps are available.

Cat Pumps Corporate Overview

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Cat Pumps High-Pressure Piston & Plunger Pumps


0.13 to 240 gpm (0.49 to 908 lpm)
100 to 10,000 psi (6.9 to 689 bar)
100 to 3,450
Liquid temperature
-10° to 200°F (-23° to 93°C)


  • Specially formulated, high &low-pressure seals offer unmatched performance and seal life
  • 100% wet cup/seal design adds to service life by allowing pumped fluids to cool and lubricate the elastomers on both sides
  • Stainless steel valves, seats and springs provide corrosion resistance, positive seating and long life
  • Chrome-moly crankshaft provides unmatched strength and surface hardness for long life
  • Patented stepped piston rod with hard chrome-plated sleeve provides a durable wear surface and easy wet end servicing
  • Precision-polished, solid ceramic plungers provide maximum resistance to corrosion and abrasion, extending seal life
  • High strength stainless steel plunger rods have a 360° supported crosshead providing uncompromising plunger rod alignment
  • Matched oversized connecting rods are made of high-strength material with exceptional bearing quality
  • Oversized ball bearings or tapered roller bearings provide extended bearing life
  • High-strength, lightweight die cast aluminum crankcase with splash oil design allows operation at speeds as low as 100 RPM
Contact our pump experts to help guide your selection process and address proper sizing and materials.