3841 – 38 FRAME BLOCK-STYLE PLUNGER PUMP Home > Brands > CAT Pumps > Plunger Pumps > 3841 – 38 FRAME BLOCK-STYLE PLUNGER PUMP Posted on September 30, 2016October 17, 2016 by tugz Technical Specifications Max Flow: 45 Min Pressure: 100 Max Pressure: 1000 Inlet Port Size: 1 1/2″NPT(F) Discharge Port Size: 1″NPT(F) RPM: 800 Drive Type(s): Belt Material: Stainless Steel (SS)