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Your location is: ProductsPower station valveExtraction Check Valve

Extraction Check Valve

Product details

The extraction check valve is mainly used in steam turbine extraction system of thermal power plants to prevent the backflow of media or water, and plays a protective role on important facilities such as steam turbine and water pump. Its performance requirements are under the extraordinary conditions such as backflow of pipeline media, power failure, accident, etc., the valve is closed instantaneously with a closing time of less than 0.5 seconds.


Product models: H664H, H664Y
Nominal diameter: DN50 ~ 1000mm
Nominal pressure: PN1.0 ~ 10.0MPa
Operating temperature: ≤550℃
Main materials: WCB, WC6, WC9
Applicable medium: water, steam, air, oil
Design criteria: API 6D, BS 1868, GB/T 12235, GB/T 12236, JB/T 8937
Structure length: ASME B16.10, API 6D, GB/T 12221
Connection standard: ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113, JB/T 79, HG/T 20592
Pressure test: API 598, API 6D, GB/T 13927, GB/T 26480
Pressure and temperature classes: ASME B16.34, GB/T 12224



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