American standard check valve

1/American Standard Check Valve
/American Standard Check Valve refers to a valve that relies on the flow of the medium itself to automatically open and close the valve disc to prevent the backflow of the medium. It is also called a check valve, a one-way valve, a reverse flow valve and a backflow valve. pressure valve. The check valve is an automatic valve whose main function is to prevent the backflow of the medium, prevent the pump and drive motor from reversing, and release the container medium. Check valves may also be used on lines supplying auxiliary systems where the pressure may rise above the system pressure. Check valves can be mainly divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).
The function of this type of valve is to only allow the medium to flow in one direction and prevent the flow in one direction. Usually this kind of valve works automatically. Under the pressure of fluid flowing in one direction, the valve disc opens. When the fluid flows in the opposite direction, the fluid pressure and the self-weight of the valve disc act on the valve seat, thereby cutting off the flow.
2 Product Structural Features/American Standard Check Valve
The valve disc of the American Standard Check Valve is disc-shaped and rotates around the rotating axis of the valve seat channel. Because the inner channel of the valve is streamlined, The flow resistance is smaller than that of the lifting butterfly check valve, and it is suitable for low flow rates and large diameter situations where the flow does not change frequently. However, it is not suitable for pulsating flow, and its sealing performance is not as good as that of the lifting type
Three Standards/American Standard Check Valve Valve
Design and manufacturing standards
Structural length standards
Connection flange standards
Pressure and temperature levels
Test inspection standards