1810 – 18 FRAME BLOCK-STYLE PLUNGER PUMP Home > Brands > CAT Pumps > Plunger Pumps > 1810 – 18 FRAME BLOCK-STYLE PLUNGER PUMP Posted on September 29, 2016April 14, 2021 by tugz Technical Specifications Max Flow: 3 Min Pressure: 100 Max Pressure: 10000 Inlet Port Size: 1/2″NPT(F) Discharge Port Size: 3/8″NPT(F) RPM: 1500 Drive Type(s): Belt Material: Stainless Steel (S)