... ball valve1, Material Valve body stem/ball: brass Cn39Pb3 according to EN12164 or EN12165, CW617, CW614 Seal: PTFE2, Size 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, 2”, 2-1/2 ... the fastening of the valves. brass ball valve:1.Body: brass (CW614N, CW617N)2. Ball: brass (CW614N, CW617N) is ... iron, aluminum, steel 6. Valve bolt: SS7. NPT, BSPT, G screwSize: 1/2, 3/4, 1,1-1/4,1-1/2,2 inch Forging Brass ball valve