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Pressure-Pro Cat Pumps 5000 PSI 4.7 GPM Industrial Solid Shaft Pum

Cat Pump's 781 plunger pump has been used for decades on marine reverse osmosis systems. Up to 4.7 GPM, up to 5000 PSI, max RPM 1750. Matched connecting rods and oversized bearings provide long trouble-free service.
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This is a triplex (three plunger rods) positive displacement, reciprocating, plunger pump, constructed of a machined, 316SS block-style inlet and discharge manifolds, 316SS valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and o-rings. These pumps are suitable for harsh liquids like saltwater and leachate, special sanitizing chemicals and food products. See also 784K flushed model.

Max Flow 2.9 gpm / 11 lpm
Max Pressure 5000
Inlet Port Size 1/2" NPT(F)
Discharge Port Size 3/8" NPT(F)
RPM 1750
Drive Type(s) Belt, Clutch, Flexible Coupling and Bellhousing
Material 316 Stainless Steel


Please Note: Pump Rails show on image are not included with pump.

Assembled in the USA

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