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double disc flat gate valve Wenzhou ONO ValveCO.,Ltd is a professional manufacturer of valve.Our products include globe valves,check valves,safety valves,ball valves,butterfly valves,diaphragm valves,ect.And it has complete inspection equipment, such equipments as Fire Safe Test Device of through Loyd’s, Cryogenic Test Device, Torque Test System and Fugitive Emission Test system equipment, which can control the production quality effectively. The specification of the double flat gate valve The product name:double disc flat gate valve Size NPS1/2" 12" Pressure Ratin Class150lb Class1500lb Material A216-WCB,A217-WC6,WC9,C5,C12,A351-CF8,CF8M,CF3,CF3M,CF8C,CN7M,A105,A182-F11,F22,F9,F5,F304,F316,F304L,F316L,F321,ALLOY-20 Design&Manufacturing Standard API6D,ASME B16.34,API608,MSS SP-72,BS5351 Structure Lenght Size ASME B16.10 ,API 6D,EN 558 Flange Connection Size ASME B16.5,DIN 2501 Butt Welding Size ASME B16.25 Preesure-Reference Temperature ASME B16.34 Checkand Experiment API 598,API6D Drive Method Manual,Gear Case,Electromotion,Pneumatic,linkage Prevent Electrostatic Design Fireproofing Design API607/6FA