BUTTERFLY VALVE; NOMINAL SIZE: 8 IN; FLUIDS: WATER; MOUNTING TYPE: WAFER; DISC MATERIAL: STAINLESS STEEL; TYPE OF OPERATION: WITH PNEUMATIC ACTUATOR; PRESSURE: 250 PSI; BODY MATERIAL: CAST IRON; SEAT MATERIAL: EPDM; WITH DOUBLE ACTING PNEUMATIC ACTUATOR BRAND KEYSTONE F79U-036 1/4" NPT CONNECTIONS; SEAT VULCANIZED TO BODY; MAXIMUM PRESSURE 20 KG/CM2; SUPPLY IN WOODEN BOX WITH LABEL INDICATING MATERIAL CODE AND DESCRIPTIVE DATA; VALVE MUST BE SUPPLIED WITH TRABACANDED DEVICE – SUITABLE FOR USE WITH 6 MM NORMAL SIZE 8 MM P ASA; MANUFACTURER 1: TYCO; MODEL 1: 221