1541 – 15 FRAME PLUNGER PUMP Home > Brands > CAT Pumps > Plunger Pumps > 1541 – 15 FRAME PLUNGER PUMP Posted on September 30, 2016October 17, 2016 by tugz Technical Specifications Max Flow: 18 Min Pressure: 100 Max Pressure: 1200 Inlet Port Size: 1″NPT(F) Discharge Port Size: 3/4″NPT(F) RPM: 1100 Drive Type(s): Belt Material: Stainless Steel (SS)