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Cat Pumps

661D.3700 10 GPM, 3000 PSI 15PFR1 PUMP DSS R CAT Pumps

661D.3700 10 GPM, 3000 PSI 15PFR1 PUMP DSS R CAT Pumps

Regular price $7,899.99 USD
Regular price Sale price $7,899.99 USD
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661D.3700 10 GPM, 3000 PSI 15PFR1 PUMP DSS R  CAT Pumps

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CAT Pumps 661D.3700 15-Frame Plunger Pump

 

The CAT Pumps 661D.3700 is a highly specialized, industrial-duty triplex positive displacement reciprocating plunger pump engineered for extreme durability in corrosive fluid applications. Built on the rugged 15-frame crankcase, this specific model features a high-strength Duplex Stainless Steel (DSS) manifold and 316 Stainless Steel valve assemblies. Duplex stainless steel provides extraordinary resistance to corrosion, cracking, and pitting, making this pump the premier choice for handling harsh fluids in demanding applications such as saltwater reverse osmosis (SWRO), desalination, chemical processing, and wastewater reclamation.

Designed for continuous-duty operation, the 661D.3700 delivers a reliable 10 GPM at pressures up to 3000 PSI when operating at 1429 RPM. It features precision-polished solid ceramic plungers and specialized internal seals (indicated by the .3700 suffix) configured for demanding high-purity or harsh chemical environments. Its versatile solid shaft design allows for either a precise belt-driven setup or a direct-drive connection using a bell housing and flexible coupler, ensuring consistent flow and superior longevity in industrial water treatment systems.


SPECIFICATION DETAILS
Model Number 661D.3700
Manufacturer CAT Pumps
Pump Type Triplex Plunger Pump
Frame Size 15-Frame
Manifold Material Duplex Stainless Steel (DSS)
Valve Assemblies 316 Stainless Steel
Max Flow Rate 10 GPM (37.9 LPM)
Pressure Range 100 – 3000 PSI
Test Pressure 3000 PSI
Max Pump Speed 1429 RPM
Inlet Port Size 3/4" NPT(F)
Discharge Port Size 1/2" NPT(F)
Shaft Diameter 1.181" (30 mm)

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