... coated steel Handle PTFE, EPDM O-Ring seals Gas Ball Valve FxFMS58 brass, size 1 inch DN25General descriptions:1. Size from 1/2 ... inch to 4 inch, DN15 to DN100.2. Brass material: CuZn39Pb2, CW617n, CW614n, HPb59-1, 57-3, MS583. Body ... color, nickle plated4. Port: standard flow, full flow, reduced flow5. Ball: brass, stainless steel, plastic6. Working pressure: 1.6MPa7. Working temperature: -30 ...