Cat Pumps 310S 5 Frame Plunger Pump, 4 GPM, 2200 PSI | Summary
Built to handle demanding industrial applications, the Cat Pumps 310S is a 5-frame, triplex plunger pump engineered for long life and high performance. It delivers 4 GPM at up to 2200 PSI and operates at 950 RPM—perfect for belt drive, clutch drive, or coupling setups.
This upgraded “S” Series model features precision-press stainless steel sleeve inserts in the manifold to prevent washout and dramatically increase pump longevity. Combined with 304 stainless steel valve assemblies and solid ceramic plungers, this pump is designed for tough jobs and maximum uptime.
Cat Pumps 310S Triplex Plunger Pump for Pressure Washers | Features
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Chrome-plated brass manifold with 304 SS sleeve inserts
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304 stainless steel valve assemblies for corrosion resistance
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Solid ceramic plungers for extended seal life
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Press-fit stainless sleeves eliminate manifold washout
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Triplex (3-plunger) positive displacement design
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Standard NBR (Buna-N) seals and O-rings
| Specification | Details |
| Brand | Cat Pumps |
| Part Number | 310S |
| Max Flow | 4.0 GPM |
| Max Pressure | 2200 PSI |
| RPM | 950 RPM |
| Inlet Port | 1/2" FNPT |
| Discharge Port | 3/9" FNPT |
| Pump Material | Chrome-Plated Brass Manifold |
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