... viton or Silicone.Double acting pneumatic actuator's operating modeThere are two operating modes1, when ball valve closed, Air to ... rotation at 0°and 90°Main technical data for ball valves1, BALL VALVE MATERIALbody material : WCB, LCB, A105, CF8,CF8M ... LF2,F304,F316Seat material : PTEF,PEEK,PPL2, BALL VALVE STRUCTUREFloating ball and trunnion mounted ball with 2-piece or 3-piece body3, CONNECTION ...