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Size: DN50-DN300 (2-12) Nominal Pressure: PN10 Design Standard: API609;GB12238; Body Flange Drilling: DIN2501;ANSI125/150;BS4504;JIS B2210;AS2129;GB17241.6 Tope Flange: ISO5211 Face to Face: ISO5752;API609;MSS SP-67;GB12221 Test Inspection: API598;GB13927 Suitable Medium: Water,Steam,Oil,Acids, Alkalis, Salts,etc. Operations: lever, Worm gear, Electric Actuator and Pneumatic Materials & Pressure: BODYDISCSHAFTSEATBUSHINGGrey Cast IronDuctile Iron + PTFE/NYLONStainless SteelPTFEPTFEDuctile IronStainless Steel +PTFE/NYLONBRONZEStainless Steel Nominal Pressure10 Bar16 BarTesting pressureShell15 Bar24 BarSealing11 Bar17.6 Bar Features: 1) Used in foodstuff and chemical industries, in high temperature or strong coorosive pipline.2) Can be used in cutting off and regulating medium.3) Easy installation and maintenance. It can be mounted wherever needed.4) Simple, compact structure, quick 90-degree on-off operation, minimized torque, energy saving. 5) Disc has two-way bearing, which can be without leakage under the pressure test.