Product Introduction
Check valve is Automatic valves operate based on the force of the medium itself,which can be used for Prevent backflow of the mediumof low-pressure pipeline medium.
Check valve refers to employ an internal rocker arm swing structure. The valve disc’s own weight and the force of the medium cause the valve disc to open or close. The valve disc sealing surface maintains contact with the valve seat sealing surface and can automatically adjust its sealing position, resulting in good sealing performance.
Check valves can be used to unidirectional flow of various types of fluids such as air, water, steam, various corrosive media, oil, and radioactive media. It mainly plays the role of cutting and prevent backflow on the pipeline. It is widely used in many fields such as water treatment, petroleum, chemical industry, metallurgy, hydro power, etc.
Specifications
| DN | DN50-DN600 |
| Temperature range | -20℃-400℃ |
| Installation direction | unidirectional |
| Face to face | GB/T12221, ASME B16.10, JIS B2002, DIN3202, |
| Top connection | / |
| Body material | GGG40/WCB/SS304/SS316/SS304L/SS316L |
| Stem material | 2Cr13,F6a,WC6, SS304, SS316 |
| PN | PN10, PN16, JIS5K, JIS10K, 150LB |
| Connection | Flange |
| Design | GB12236, GB/T12235, API594, JIS B2071, DIN 3356, |
| Flange drilling | Class150/PN10/16/10K |
| Inspection | API598,JB/T9092 ,JIS B2003 |
| Disc material | GGG40/WCB/SS304/SS316/SS304L/SS316L |
| Sealing material | Brass, Cr13 SS304,SS316, |
