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 a valve in which the closing part is two disc, which rotates around the valve shaft to achieve opening and closing.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-DN800 |
| Temperature range | -20℃-120℃ |
| Installation direction | unidirectional |
| Face to face | GB/T12221, ASME B16.10, JIS B2002, DIN3202, |
| Top connection | / |
| Body material | GG25/GGG40/WCB/SS304/SS316/SS304L/SS316L |
| Stem material | #45,SS420, SS304, SS316 |
| PN | PN10, PN16, JIS5K, JIS10K, 150LB |
| Connection | Wafer |
| Design | GB/T12238, API609, JIS B2064, DIN 3354, BS 5155 |
| Flange drilling | Class150/PN10/16/10K |
| Inspection | API598 |
| Disc material | GG25/GGG40/WCB/SS30/SS316/SS304L/SS316L |
| Sealing material | EPDM, NBR, PTFE, VITON, SILICONE,Cr13,SS304,SS316, |
