Check Valve Classificatio
Check valve is the valve that rely on the power of the fluid itself to open and close automatically, its role is to prevent the media back flow. According to the structure can be divided into two categories. In the valve model with "H".
One is the lift check valve: The flap moves along the vertical centerline of the valve body. There are two types of this lift check valves: one is horizontal, installed in the horizontal pipe, the valve body shape is similar to the valve, the other is vertical, installed in the vertical pipe.
The other is a swivel check valve: The valve flap rotates around the pin, this type of valve has a single, double and multi-flap, but the principle is the same.