Butt Welded Butterfly Valve

The KOSEN Welding Type Butterfly Valves is a simple regulating valve, and it can also be used for switch control of low pressure pipeline medium. Hard seal butterfly valves mainly cut off and throttling on pipelines. The butterfly valve opening and closing part is a disc shaped butterfly plate which rotates around its own axis in the valve body so as to achieve the purpose of opening or closing or regulating. The hard sealed butterfly valve is suitable for the pipes of the furnace, gas, steam, natural gas, city gas, cold and hot air, chemical smelting engineering and power generation environmental protection system to convey various corrosive and non corrosive fluid medium, which can be used to regulate and truncate the flow of the medium.

Technical Specification
Normal Size Range: 2"-40"
Normal Pressure Rating: PN10~PN16, CLASS150~300
Material: WCB, CF8,CF8M,CF3,CF3M
Operation: Handwheel, Pneumatic, Electric
Temperature Range: -29~150 egree C

Standards compliance
Design and Manufacture: GB/T12228, API609
Face to face(end to end): GB/T12221
Flanged connection: ANSI B16.5, GB/T 9113
Test and inspection: API 598, GB/T 13927