Turbine Steam extraction quick closing check valve is mainly installed on the turbine steam extraction piping, when the turbine emergency shutdown, this valve is used to prevent the steam and condensate water of piping system flowing back to damaged the turbine .Achieving the reliable cut-off of pipeline, protecting the system safety.
Our company produce the steam extraction quick closing check valve main valve sealing surface is the swash plate threee eccentric butterfly valve, open and close easily ,sealing reliably ,initiate quickly. Drive compact structure,the bottom of cylinder has buffer device, It can eliminate impacted to the cylinder when it quick close. Pneumatic components mainly use the imprted brand and other international famous brand products, occupied minimum space. Ordinary open-close operation, Air source is provided by pump or gas tank host, mating pump station. When quick closing ,it is achieved by quick releasing of quick exhaust valve.
The valve size can be from DNN200 to DN1400, high temp steel and stainless steel can be used as body material. valve can be close within 0.5second.can be close by helping pneumatic actuator and hydraulic actuator.
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