Cryogenic Service Check Valve Manufacturer & Exporter

ASTM A351 CF8/CF8M, A352 LCB/LCC bodies · 2" to 36" (DN50–DN900) · Class 150 / 300 / 600 / 900 · BS 1868 / API 594 / API 6D. Exported to Saudi Arabia, UAE & 40+ countries with full documentation.

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Why Cryogenic Service for Check Valves?

Cryogenic Service check valves combine the check valve's proven shutoff design with extended bonnets keep stem packing at ambient temperature while body materials stay ductile at -196°C, with every valve tested per BS 6364. This makes them the standard specification for LNG, liquid nitrogen, liquid oxygen, liquid argon, ethylene, and LPG.

Supreme Valves manufactures cryogenic service check valves in ASTM A351 CF8/CF8M, A352 LCB/LCC bodies with design and testing per BS 1868 / API 594 / API 6D. Every valve ships with EN 10204 3.1 material certificates and full pressure test reports; third-party inspection by Lloyd's, BV, or TÜV is available for project orders.

Cryogenic Service Check Valve Specifications

ParameterSpecification
Body MaterialsASTM A351 CF8/CF8M, A352 LCB/LCC bodies
Corrosion IndexCharpy tested at -196°C
Temperature Range-196°C to +200°C
Size Range2" to 36" (DN50–DN900)
Pressure ClassClass 150 / 300 / 600 / 900
End ConnectionsFlanged RF/RTJ, Wafer, Lug, Butt Weld
Design StandardBS 1868 / API 594 / API 6D
TestingAPI 598, hydrostatic shell & seat; NDE (RT/PT/UT) on request
DocumentationEN 10204 3.1/3.2 MTC, NACE MR0175 compliance, IBR where applicable

Available Designs

Swing Check (Bolted Cover)
Dual Plate Wafer & Lug (API 594)
Piston / Lift Check
Non-Slam Spring Assisted
Retainerless Design Option
Soft or Metal Seated

Industries We Serve

LNG liquefaction & regas terminals
Air separation units (ASU)
LPG storage & bottling
Ethylene crackers
Industrial gas distribution
Space & rocket test facilities

Frequently Asked Questions

What cryogenic service grades do you use for check valves?
We manufacture Cryogenic Service Check Valve bodies in ASTM A351 CF8/CF8M, A352 LCB/LCC bodies. All castings/forgings are supplied with EN 10204 3.1 material test certificates; 3.2 certification with Lloyd's, BV, or TÜV witness is available on request. Charpy tested at -196°C.
What services is a cryogenic service check valve recommended for?
Cryogenic Service construction is proven in LNG, liquid nitrogen, liquid oxygen, liquid argon, ethylene, and LPG. The material offers extended bonnets keep stem packing at ambient temperature while body materials stay ductile at -196°C, with every valve tested per BS 6364. Operating temperature range is -196°C to +200°C.
What sizes, ratings, and designs are available?
Sizes 2" to 36" (DN50–DN900), pressure classes Class 150 / 300 / 600 / 900, end connections Flanged RF/RTJ, Wafer, Lug, Butt Weld. Designs include: Swing Check (Bolted Cover), Dual Plate Wafer & Lug (API 594), Piston / Lift Check, Non-Slam Spring Assisted. Design and testing per BS 1868 / API 594 / API 6D, pressure tested per API 598.
Do you export cryogenic service check valves to the Middle East?
Yes. We export to Saudi Arabia, UAE, Qatar, Kuwait, Oman, and Bahrain with complete documentation — MTCs, test certificates, NACE MR0175 compliance where specified, and third-party inspection. Typical delivery 4–8 weeks with DAP/CIF terms to GCC ports.

Related Pages

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