2511 Cat Pump 20 GPM 1500 PSI 316 SS Belt Drive

Cat Pumps 2511 25-Frame Triplex Plunger Pump

The Cat Pumps 2511 is a heavy-duty, 25-frame triplex positive displacement plunger pump engineered for high-volume, continuous-duty fluid transfer in harsh industrial environments. Constructed with a premium, precision-machined 316 stainless steel manifold and 316 stainless steel valve assemblies, this pump provides exceptional structural integrity and superior corrosion resistance. This specialized metallurgy makes it an ideal, high-efficiency solution for demanding applications such as reverse osmosis (RO), desalination, chemical injection, and wastewater processing where standard brass components would prematurely degrade. Its internal wet-end features highly polished, solid ceramic plungers that offer a true concentric wear surface to minimize friction and heat, significantly extending seal life during rigorous operation.

Designed to maximize uptime and efficiency, the 2511 model delivers a steady, high-capacity flow rate of 20.0 gallons per minute (GPM) while operating at a maximum pressure of 1,500 PSI. Driven at an optimal speed of 1450 RPM, it features a durable die-cast aluminum crankcase with a splash oil-bath design to ensure maximum load capacity and extended bearing life. The pump comes standard with pre-set, low-pressure NBR (Buna-N) seals and O-rings, allowing it to safely handle liquid temperatures up to 160°F (71°C) while providing secondary protection against external leaks. Its versatile footprint permits multiple drive configurations—including precision flow-setting via belt drive or a compact direct-drive footprint utilizing a bell housing and flexible coupling—providing a highly reliable fluid handling solution for aggressive liquids and critical commercial processes.