Cat Pump # 3507HS Plunger Pump

The Cat Pump 3507HS is a Plunger Pump, pump end only, with Nickel Aluminum Bronze construction, 1 1/2 inch NPT(F) Inlet port x 3/4 inch NPT(F) Discharge port, and is rated for up to 10 GPM, and 5000 PSI at maximum shaft speed of 915 RPM. This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with nickel aluminum bronze manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings. Advanced connecting rod and plunger rod materials optimize drive-end operation for continuous-duty applications on this "HS" Series pump. This Plunger pump utilizes spring-loaded closed and hydraulically opened inlet and discharge valves to direct flow through the pump manifold. At the beginning of the stroke, the plunger displaces the liquid in the manifold chamber, forcing the discharge valve open. When the plunger reaches the end of the stroke, the discharge valve closes. As the plunger rod begins its backward stroke, the inlet valve opens to allow more liquid into the manifold chamber, thereby keeping a smooth forward flow of liquid. IMPORTANT : All high-pressure systems require a primary pressure regulating device (e. g. regulator, unloader) and a secondary pressure relief device (e. g. pop-off valve, relief valve). Failure to install such relief devices could result in personal injury or damage to pump or property.