Exhaust check valve allows air or other gas to flow only in one direction, and helps to eliminate backflow. It is applied in the water supply preheating system of power station or other industrial pipeline systems. Under a gas pressure of 0.5~0.7MPa or with the effect of return spring, the check valve is able to shut off the water supply in 0.5s, effectively preventing the backflow phenomenon which may damage the turbine or other devices.
Materials for Option (Customizable)
Valve body: WC6
Middle flange bolt: 20Cr1Mo1V1A
Middle flange nut: 45