Double Diaphragm Pump Pump Operation Type Air Operated Max Flow 90 gpm Max Temp - Pumps 150 Degrees F Housing Material - Pumps Aluminum Inlet/Outlet Size 1 1/2 in Connection Style NPT Air Inlet Size 1/2 in FNPT Diaphragm Material - Pumps Nitrile Agency Compliance ATEX CE REACH RoHS Valve Type Ball Max Flow GPM 90 gpm Max Operating Pressure 120 psi Ball Material Acetal Check Seat Material Polypropylene Max Dia Solids 1/4 in Manifold Connection Single Length 23 7/8 in