Our forged steel low temperature butt welding gate valves are specially engineered for cryogenic applications down to -196°C (-320°F). Featuring extended bonnet design and precision forged construction (ASTM A350 LF2/LF3), these valves ensure reliable performance in LNG, industrial gas, and cryogenic processing systems.
✔ Extended Bonnet – Prevents seat freezing and protects packing
✔ Double Seal Design – Stem sealing backseat for maximum safety
✔ Fire-Safe Construction – API 607 compliant options available
✔ Butt Weld Ends – ASME B16.25 for leak-proof pipeline integration
✔ Low Emission Design – Meeting ISO 15848-1 standards
|
Parameter |
Specification |
|
Body Material |
ASTM A350 LF2 (CS), LF3 (Alloy), A182 F316 (SS) |
|
Pressure Rating |
Class 150 - 900 (ASME B16.34) |
|
Size Range |
½" - 24" (DN15 - DN600) |
|
Temperature Range |
-196°C to 38°C (standard) / up to 80°C (special) |
|
End Connection |
Butt Weld (ASME B16.25) |
|
Seat Material |
PTFE, Graphite, Metal-to-Metal |
|
Stem Material |
SS304, SS316, Monel |
|
Bonnet Design |
Extended (standard 4", 8", 12" options) |
|
Design Standards |
BS 6364, API 600, ASME B16.34 |
|
Testing Standard |
API 598 Cryogenic Testing |
Double Piston Effect (DPE) Seals – For ultra-low leakage
Anti-Static Device – Meets IECEx requirements
Thermal Barrier – Optional insulation jacket
Glandless Design – Available for oxygen service
Cryogenic Testing – Each valve tested at operating temperature
LNG Plants: Liquefaction, storage, regasification
Industrial Gases: Oxygen, nitrogen, argon systems
Chemical Processing: Ethylene, propylene service
Aerospace: Rocket fuel handling
Medical Gas: Ultra-pure gas systems
✅ Proven Cold Performance – BS 6364 compliant
✅ Leak-Tight Guarantee – Double sealing system
✅ Specialized Materials – Impact-tested for cryo service
✅ Global Certifications – PED, ASME, ISO 15848
If you have any enquiry about quotation or cooperation,please feel free to email us at eman@chhyv.com or use the following enquiry form. Our sales will contact you within 24 hours. Thank you for your interest in our products.
We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept All", you consent to our use of cookies.
