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Ten Features of Extraction Flue Check Valve

Extraction flue check valves are mainly used in steam turbine extraction systems below 600 MW to prevent medium or water backflow, and to protect steam turbine pumps and other important measures. In the very condition of reverse flow, power failure, accident, etc. of the pipeline medium, the valve can be closed instantly and the closing time is less than 0.5 second.
Extraction flue check valve features
1, the design and manufacturing acceptance standards use ANSIB16.34, E101 or JB/T3595, strength and sealing function fully meet the requirements of the scale, the vacuum state of the fire valve under vacuum test, the whole life meets user requirements.
2, For different temperatures, the main material is carbon steel or high-temperature steel, and the sealing surface is surfacing with cemented carbide.
3, The valve flap is designed to be connected with the valve stem through the rocker and can be aligned with the sealing surface of the valve to ensure that the sealing surface matches.
4. The sealing surface of the valve seat is inclined at a certain angle to reduce the closing time, reduce the impact, and protect the safety of the equipment itself and the pipeline.

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