BUTTERFLY VALVE; NOMINAL SIZE: 4 "; FLUIDS: WATER; MOUNTING TYPE: WAFER; DISC MATERIAL: CF8M STAINLESS STEEL; OPERATING TYPE: HAND LEVER; PRESSURE: 150PSI; BODY MATERIAL: A2 16 GR.WCB CARBON STEEL; SEAT MATERIAL: RTFE; DOUBLE ECCENTRICITY BUTTERFLY VALVE, NOMINAL SIZE: 4" INCHES, CLASS