Q644F pneumatic ball valve can be equipped with pneumatic FRL I. said: ??? Q644F pneumatic ball valve apply to corrosion or corrosive liquids, gases, powders media end switching, mixing and diversion; closing process , passage intelligible reduced pressure loss, and effortless operation, repair convenient; five kinds of flow types to meet different technical requirements, can be hand, pneumatic, electric control. Second, product characteristics: 1, compact structure, opening and closing sensitive, runner clear, fluid resistance. 2, good sealing performance: the use of seat material surrounded by the elastic deformation of the end of the Teflon seal without leakage. 3, a multi-purpose valve: Any port can be used as import without disclosure, three can be made L-shaped port, can also be made T-port. 4, repair Lunch: relief after the system, without removing the entire body can be inspected and repaired. 5, the pan is suitable for water supply, petrochemical, metallurgy, mining, textile, power, paper, food, steel piping system for medium flow switch and the shunt or mixing a fluid medium. Third, the technical parameters: Nominal pressure 1.6 MPa 2.5 MPa 4.0 MPa 6.4 MPa 10.0 MPa 150 Lb 300 Lb 600 Lb strength test 2.4 MPa 3.75 MPa 6.0 MPa 9.5 MPa 15.0 MPa 3.1?????????????? MPa 7.5 MPa 15.0 MPa water seal test 1.76MPa 2.75 MPa 4.4 MPa 7.04 MPa 11.0 MPa 2.2 MPa 5.5 ?? MPa 11.0 MPa gas seal test 0.6MPa four main parts material:???????? title CF8 CF3 class category CF8M CF3M body A315-CF8 A35-CF3 A351-CF8M A351-CF3M ball A351-CF8 A351-CF3 A351-CF8M A351-CF3M stem A182-F304 A182-F304L A182-F316 A182-316L Seat PTFE / reinforced PTFE valve seat support ring A182-F304 A182-F304L A182-F316 A182-F316L O-ring Viton stretched spring 17-49H stud nut A194-8 A193-B8