CAT Pump Model 1731 Plunger Pump 15.8 GPM @ 1750 RPM, Pressure 100-1500 PSI

Model: 1731 ~ Call For Pricing

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

The 1750 RPM permits multiple drive options, including direct drive with a bell housing and flexible coupling, clutch or belt drive.


• Triplex plunger design ensures high efficiency and low pulsation.
• V-Packings and low-pressure seals are completely lubricated and cooled by pumped liquid, greatly increasing service life.
• Direct-drive option offers a compact footprint for electric motors with a NEMA or IEC frame, or SAE hydraulic motors with a bell housing/flexible coupler assembly.
• Belt-driven option provides precision flow setting.
• Pump comes standard with NBR seals. Alternative seal materials are available for higher temperature or chemical compatibility.


Technical Specifications
Max Flow 15.8 gpm / 59.8 lpm
Max Pressure 1500
Inlet Port Size 1″ NPT(F)
Discharge Port Size 3/4″ NPT(F)
RPM 1750
Drive Type(s) Belt, Clutch, Flexible Coupling and Bellhousing
Material 316 Stainless Steel


CAT Pump Model 1731 Data Sheet

CAT Pump Model 1731 Service Manual


Cat Pumps Limited Warranty