The double PVC check valve can automatically open and close the disc to prevent the backflow of medium. It is also called check valve, check valve, backflow valve and back pressure valve. The principle of double make PVC check valve belongs to an automatic valve. Its main function is to prevent medium backflow, reverse rotation of pump and drive motor, and discharge of container medium. The check valve can also be used in the line that supplies the auxiliary system with the pressure that may rise above the system pressure. The purpose of this type of valve is to allow the medium to flow in one direction only and prevent the flow in the opposite direction. This kind of valve works automatically. Under the action of fluid pressure flowing in one direction, the valve disc is opened; when the fluid flows in the opposite direction, the fluid pressure and the self weight of the valve disc act on the valve seat to cut off the flow.
1. Double PVC check valve size: 1 / 2 "- 2", interface method: mouth, flat mouth.
2. Standards: ANSI sch80 (American Standard), BS (British Standard), DIN (German standard), JIS (Japanese standard), Thailand standard (Thai Standard), CNS (Taiwan standard)
Product characteristics of double PVC check valve:
The valve is made of all plastic material, rust free and corrosion-resistant.
Double PVC check valve EPDM sealing ring, good sealing performance, strong corrosion resistance.
It is designed with two-way two-way and convenient maintenance. The ball valve can be closed, unloaded and repaired in the later section of the project in the condition that the front section of equipment pipeline does not need to be shut down.
The double PVC check valve can be assembled quickly without using special tools, and the loading and unloading is simple.
The PVC check valve shall be installed vertically and flow direction shall be from bottom to top. During installation, please recognize the direction of arrow, i.e. the direction of fluid flow.
Products are widely used in chemical industry, electronics, metallurgy, electroplating, irrigation, sewage treatment, recycling water engineering, aquaculture, civil construction and other industries.