API 6A Check Valve
Size Range 1-13/16"～7-1/16"
Pressure: 2000psi～20000psi
Temperature -60℃～121℃
Material AA～HH
Performance PR1～PR2F
Standard API 6A, DIN, EAC, JIS, CE, ISO, EN, GB
Advantages API 6A-certified, compact, anti-backflow, high-pressure/corrosion-resistant wellhead safety
Description
Check valves are passive safety valves designed to prevent backflow of media, which can cause wellhead pressure disturbances, equipment damage, and even safety accidents. They act as a "backflow prevention barrier" for wellhead systems.
Check valves allow only unidirectional flow of media. They automatically close when the downstream pressure is higher than the upstream pressure, preventing problems such as pump reversal, wellbore pressure fluctuations, and manifold pressure buildup caused by backflow.
Check valves are sensitive to opening and closing, provide reliable sealing, are resistant to high-pressure impacts, require no manual operation, and can be installed in series with gate valves to form double protection.
Check valves are used at the inlet of wellhead production pipelines and injection wells (water/gas injection pipelines) to prevent the injected media from flowing back and contaminating the wellbore.
API 6A Check Valve Gallery
Quality Control
Apply advanced computer simulation analysis technology
API 6D, CE certification, ISO 9001, ISO 14001, ISO 45001
Ensure the safety and reliability of the project system
Environmental Protection, make world sustainable
Production Process
Customer visits and exhibitions
Qualification Certificate
