Check Valve
A check valve opens and closes automatically in response to the pressure difference created by the medium. Forward flow opens the disc; when flow falls or a reverse pressure difference develops, gravity, a spring where fitted, and reverse pressure close it. This helps prevent backflow and protect pumps, compressors and connected equipment.
| Size Range | DN15 ~ DN400 |
|---|---|
| Pressure Rating | PN10 / PN16 / PN25 / PN40 |
| Working Temperature | -20°C ~ 120°C(EPDM) / -20°C ~ 200°C(PTFE) |
| Body Material | WCB / WCC / CF8 / CF8M etc. |
| Lining Material (Optional) | rubber alloy / ceramic / rubber / polyurethane |
| Connection | flanged(GB / HG / ANSI / JIS) |
| Applicable Medium | water, oil, oil and gas, steam, corrosive media, slurry and other highly abrasive, highly corrosive media |
| Actuation | automatic, operated by medium pressure difference; no external drive required |
Product range information from DQSV company materials. Confirm the selected configuration, materials and operating limits for the project. This summary is not a certified drawing or an inspection report.
Xi'an Deqiansheng Valve Technology Co., Ltd.
sales@dqsv-valve.com · China service hotline 400-100-3868