DescriptionMetal seated trunnion ball valve adopted advanced hardening technology for ball and seat,Website:http://www.hugo-valve.com, such as such as ... handle wheel, gear box, pneumatic actuator and electric actuator.Valve materials Body material : WCB,A105,LCB,304/F304, ... :410S.S., F304,F316, F316L Seat material : WC-Co Applicable standard for Valve :Design and Manufacture according to: API608 ...