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- API Check Valve
API Check Valve
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- Commission, Service and Maintenance
High integrity valves preventing backflow of drilling products. The valve contains a mechanism to permit fluid to flow freely in one direction while automatically preventing flow in the opposite direction.
API size designations
1 13⁄16,
2 1⁄16,
2 9⁄16,
3 1⁄16,
4 1⁄16,
5 1⁄8
Pressure ratings
5,000psi, 10,000psi, 15,000psi, 20,000psi
Product specification level (PSL)
PSL 1, 2, 3, 3G, 4 available
Temperature ratings
P to U as standard (-29°C to 121°C) . Elevated temperature classes X (180°C) and Y (345°C) also available.
Flange inlay
Stainless or inconel inlays to RTJ grooves available