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Cat Pumps

291 CAT Pump 3.5 GPM 1200 PSI 3-Frame Standard Solid Shaft S R

291 CAT Pump 3.5 GPM 1200 PSI 3-Frame Standard Solid Shaft S R

Regular price $2,599.99 USD
Regular price Sale price $2,599.99 USD
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291 CAT Pump 3.5 GPM 1200 PSI 3-Frame Standard Solid Shaft S R

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PLEASE REFERENCE DATA SHEETS AND TABLE BELOW

 

CAT Pumps 291 3-Frame Stainless Steel Piston Pump

 

The CAT Pumps 291 is an industrial-duty triplex positive displacement reciprocating piston pump specifically engineered for high-performance cleaning and fluid transfer. As part of the 3-frame series, this model is constructed with a high-strength 316 Stainless Steel manifold and 304 Stainless Steel valve assemblies, providing superior corrosion resistance for demanding environments. Its unique Triplex UNIFLOW design ensures a smooth, low-pulsation flow by moving liquid in a continuous forward direction, which significantly enhances suction capabilities and reduces the risk of cavitation.

Designed for long-term reliability in continuous-duty applications, the 291 is built with solid ceramic plungers and precision-polished stainless steel cylinders that maximize seal life. The belt drive configuration allows the pump to operate at a lower 1200 RPM, resulting in quieter operation and extended longevity for internal components. This model is a staple in professional-grade pressure washing, reverse osmosis, and chemical injection systems where a consistent 3.5 GPM flow at 1200 PSI is required.


SPECIFICATION DETAILS
Model Number 291
Manufacturer CAT Pumps
Pump Type Triplex Piston Pump
Manifold Material 316 Stainless Steel
Flow Rate 3.5 GPM (13.2 LPM)
Pressure Range 100 – 1200 PSI (6.9 – 83 Bar)
Test Pressure 1200 PSI
Max Pump Speed 1200 RPM
Inlet Port Size 1/2" NPT(F)
Discharge Port Size 3/8" NPT(F)
Shaft Diameter 0.650" (16.5 mm)
Max Liquid Temp (NBR) 160°F (71°C)

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