Heavy duty brass gas valves FXF, nickle plated body chrome plated ... EPDM O-Ring seals China Manufacture Hot Forged Brass Gas Valves1. Size from 1/2 inch to 4 ... : 1.6MPa3. Working temperature: -30 to 150C4. Application: Gas designed, water, oil applicable5. Flow port: DN15 to DN1006. ... 1/2 inch) General features and options for various brass gas valves: 1. Brass material: CuZn39Pb2, CW617n, CW614n, HPb59 ...