This steam turbine Wafer lift check valve 216C25  is used on non corrosive medium pipelines such as steam and water in the extraction system of power plants or thermal power plants, or other systems, to prevent the sudden decrease in pressure inside the steam turbine during sudden load rejection of the steam turbine unit. The steam in the extraction pipe and each heater flows back into the steam turbine, causing the turbine blades to break and damaging the turbine generator, And prevent the leakage of the heater system pipeline from causing water to enter the turbine from the extraction pipeline, resulting in water hammer accidents, in order to protect the safe operation of the turbine.

 

Structural characteristics of steam turbine Wafer lift check valve 216C25

1. The sealing surface is welded with Crl3 series stainless steel or cobalt based hard alloy, which has good wear resistance and stable and reliable sealing performance.

2. When the medium flows forward, the lower chamber of the cylinder is filled with air, which acts together with a heavy hammer to balance the valve disc in the fully open position. When the medium flows in the opposite direction, the lower chamber of the cylinder piston

Quickly release pressure and close the valve disc within 0.5 seconds.

3. The heavy hammer acts on the pin shaft through an extension rod and a fork to balance and shake the heavy torque of the rod, preventing the occurrence of water hammer phenomenon. When the medium flows forward, it helps to open the valve

Keep the valve stable and reduce vibration during operation.

 

 

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