Slow closing check valve or slow close check valve is one of check valves, mainly consists of valve body, valve cover, valve plate, balance weight, piston and regulating valve. Slow closing check valve is used for water supply and drainage pipeline, and is installed at the water pump outlet to prevent the back flow of the mediums, and destructive water hammer.
Advantages of slow close check valve:
1. the face to face length of slow closing check valve is short, its face to face length is only 1/4-1/8 of the traditional flange check valve.
2. Slow closing check valve has small size, light weight, its weight is only 1/4~1/20 of traditional micro resistance slow closing check valve;
3. the valve disc of slow closing check valve can close quickly, and its water hammering pressure is small;
4. the slow closing check valve can be installed in horizontal and vertical pipelines, and also it is easy to install.
5. the slow closing check valve has smooth flow channel and small fluid resistance.
6. slow closing check valve has sensitive action and good sealing performance.
7. the valve disc closing stroke of slow closing check valve is short and its closing impact is small.
8. the overall structure of slow closing check valve is simple and compact, and it has beautiful appearance;
9. slow closing check valve has long service life and high reliability.