2537 – 25 FRAME PLUNGER PUMP Home > Brands > CAT Pumps > Plunger Pumps > 2537 – 25 FRAME PLUNGER PUMP Posted on September 30, 2016October 17, 2016 by tugz Technical Specifications Max Flow: 21 Min Pressure: 100 Max Pressure: 1200 Inlet Port Size: 1 1/4″NPT(F) Discharge Port Size: 3/4″NPT(F) RPM: 860 Drive Type(s): Belt Material: Nickel Aluminum Bronze (NAB)