The three-in-one check valve is installed on the pump outlet of the water supply and drainage, hot and cold water treatment, boiler condensate, and secondary water supply pipeline of general buildings, apartments and factories to prevent the medium in the pipeline from flowing back due to pump stoppage.

1. One valve can perfectly complete three functions: water hammer check valve, gate valve, and balancing valve.

2. When the pump stops running, the spring force closes the valve disc first, thus preventing water hammer.

3. By adjusting the opening, the output of the pump can be adjusted.

4. An indicator is installed, and the opening of the valve can be confirmed by eye.

5. The sealing gasket is made of nitrile rubber, so it will not leak at all and can absorb the impact.

6. The spring is made of stainless steel, so it has strong corrosion resistance.

7. It can save water, equipment materials and costs, and reduce installation space.

8. Due to the streamlined shape and structure, the pressure drop is very small.

9. Because it plays a bypass role, it has the function of recovering water in the outlet side pipeline, and when vacuum appears on the inlet side, it can supplement water.

10. It can be installed on both horizontal and vertical pipelines.