... carton (1/2 inch) General features and options for various brass gas valves: 1. Brass material: CuZn39Pb2, CW617n, CW614n, HPb59-1, HPb57-3 ... , MS58, DZR.3. Body finish: brass color or nickle plating 4. Flow port: standard flow, full ... flow, reduced flow5. Ball material: brass, stainless steel, PVC6. Sealing: PTFE, EPDM O-Rings7. Connections to ...