What Types Of Sanitary Check Valves Are There?

Sanitary Check Valve has the following types:

1. Pipe check valve: a valve whose disc slides along the center line of the valve body.

2. Compression check valve: This valve is used as a valve for boiler feed water and steam cut-off. It has the combined functions of a lift check valve and a stop valve or angle valve.

3. Disc check valve: a check valve whose disc rotates around the pin in the valve seat. The disc check valve has a simple structure and can only be installed on horizontal pipes, with poor sealing.

4. Lift check valve: a check valve whose disc slides along the vertical center line of the valve body. Lift check valves can only be installed on horizontal pipes. On high-pressure small-diameter check valves, the disc can be a ball.

5. Swing check valve: The valve disc of the swing check valve is disc-shaped and rotates around the rotating axis of the valve seat channel. Because the channel inside the valve is streamlined, the movement resistance is smaller than that of the lift check valve. It is suitable for large-diameter places with low flow rate and infrequent flow changes, but it is not suitable for pulsating flow. Its sealing performance is not as good as the lift type.