Cat Pumps
661D Cat Pump
661D Cat Pump
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661D Cat Pump
Cat Pumps 661D Plunger Pump
The Cat Pumps 661D is an industrial-grade, triplex positive displacement plunger pump engineered for high-flow and high-pressure performance in corrosive environments. Built with a specialized Duplex Stainless Steel manifold and high-strength internal components, this pump is designed to withstand the most demanding continuous-duty applications. It is a premier choice for desalination systems, seawater reverse osmosis, and high-pressure chemical injection where superior corrosion resistance and mechanical reliability are required.
Equipped with a reciprocating plunger design, the 661D provides a smooth, low-pulsation flow that protects downstream system components. Its 15-frame design features a chrome-moly crankshaft and oversized bearings, ensuring a long service life and minimal maintenance requirements in heavy-duty environments involving aggressive fluids or salt water. The construction allows for streamlined maintenance with accessible valve assemblies, making it a reliable workhorse for specialized industrial facilities.
| SPECIFICATION | DETAILS |
| Model Number | 661D |
| Manufacturer | Cat Pumps |
| Pump Type | Triplex Plunger Pump |
| Manifold Material | Duplex Stainless Steel |
| Flow Rate | 10.0 GPM (38.0 LPM) |
| Pressure Range | 100 to 3000 psi (7 to 207 bar) |
| Test Pressure | 3000 psi |
| Pump RPM | 1429 RPM |
| Inlet Port Size | 3/4" NPT(F) |
| Discharge Port Size | 1/2" NPT(F) |
| Shaft Diameter | 30 mm |
| Max Operating Temp | 160°F (71°C) |
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