- Design and manufacture: BS 1868, API 6D, ASME B16.34, API 594, DIN 3356;
- Stainless steel check valve: API 603; Forged steel check valve: API 602, BS 5352;
- Inspection and Test: API 598, ISO 5208, DIN 3230;
- End flange dimension: ASME B 16.5; GOST 12815, DIN 2543-2547.
- BW end dimension: ASME B 16.25.
- Socket-weld dimension: ASME B 16.11.
- Face to face and end to end: ASME B 16.10, DIN 3202.
- Pressure-temperature ratings: ASME B 16.34.
Besides general swing check valves, dual plate check valve and piston check valve, our company also can make cryogenic check valve, forged steel check valve, ball type check valve, tilting check valve etc. We can also make the different material according to user’s requirement, likely Monel, Hastelloy C, Inconel, Alloy 20 and so on.