Metal seated trunnion mounted ball valves are featured in 2-pcs forged / ... solid particle, high temperature, high pressure, corrosion service etc. The metal seated trunnion Mounted ball valves are fire safe test according to ... : PTFE, RPTFE, NYLON, DEVLON, Derlin, PEEK, PPL, HNBR, FKM or metal hard seal etc. Operator: Handle, Worm Wheel, Electric, Pneumatic, Pneumatic ...