Cryogenic Gate Valve

Engineered for extremely low-temperature service, the Cryogenic Gate Valve provides dependable isolation for pipelines and equipment handling liquefied gases and other cryogenic media. Its specialized construction is designed to maintain sealing integrity and mechanical reliability under severe temperature conditions.

The valve incorporates an extended bonnet arrangement that positions the stem packing away from the extremely cold fluid, helping protect the sealing system from excessive thermal exposure. Carefully selected materials and low-temperature sealing components allow the valve to accommodate thermal contraction while maintaining reliable operation and shut-off performance.

The Cryogenic Gate Valve is widely applied in LNG, LPG, liquid oxygen, liquid nitrogen, liquid hydrogen, air separation, cryogenic storage, natural gas processing, and other low-temperature systems where safe and reliable fluid isolation is critical.

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Technical Specifications

Item	Specification
Product Type	Cryogenic Gate Valve
Valve Type	Gate Valve
Design	Wedge Gate / Parallel Slide Gate*
Size Range	DN15 – DN600 (1/2" – 24")*
Pressure Rating	Class 150 – Class 1500*
Body Material	Stainless Steel / Low-Temperature Stainless Steel*
Bonnet Material	Stainless Steel
Gate Material	Stainless Steel / Low-Temperature Alloy*
Stem Material	Stainless Steel
Seat Material	Metal Seat / Low-Temperature Sealing Material*
Bonnet Type	Extended Bonnet
Stem Arrangement	Rising Stem, Outside Screw & Yoke
End Connection	Flanged / Butt Weld
Flange Standard	ASME B16.5 / ASME B16.47*
Face-to-Face	ASME B16.10
Design Standard	API 600 / API 603 / ASME B16.34*
Testing Standard	API 598 / ISO 5208
Low-Temperature Range	Down to -196°C*
Operation	Handwheel / Gear Operator / Pneumatic / Electric
Applicable Media	LNG, LPG, LOX, LIN, LAr, liquid hydrogen, cryogenic hydrocarbons and other low-temperature fluids

*Exact specifications can be customized according to project requirements.

Features & Benefits

Extended Bonnet Design

The extended bonnet creates a thermal barrier between the cryogenic fluid and the stem packing area, helping maintain sealing performance and preventing excessive cooling of the packing system.

Cryogenic Material Selection

Valve materials are carefully selected for resistance to embrittlement and loss of mechanical properties at extremely low temperatures.

Reliable Low-Temperature Sealing

Specialized packing and seat materials are designed to accommodate thermal contraction and provide dependable sealing during cryogenic operation.

Low Fugitive Emission Risk

The optimized stem sealing arrangement helps minimize external leakage, supporting safer operation when handling hazardous or liquefied gases.

Full-Bore Flow Path

The gate design provides a substantially unobstructed passage when fully open, reducing flow resistance and allowing efficient pipeline operation.

Thermal-Contraction Compensation

The valve structure is engineered to accommodate dimensional changes caused by temperature variations, helping maintain consistent sealing and operational performance.

Durable Stem & Bonnet Assembly

A robust stem and extended bonnet arrangement provides reliable mechanical operation while protecting critical sealing components from extreme temperatures.

Safe Isolation of Cryogenic Media

The valve is designed for dependable on/off isolation in systems where accidental leakage or loss of containment can present significant operational risks.

Flexible Actuation

Manual handwheel, gearbox, pneumatic actuator, and electric actuator configurations can be provided according to valve size and operating requirements.

Cryogenic Applications

Suitable for LNG terminals, air separation units, cryogenic storage tanks, natural gas processing plants, hydrogen systems, and industrial gas facilities.

Application Scenario

Chemical Industry

Ball valves, butterfly valves, gate valves, globe valves, check valves, and control valves ensure safe fluid isolation, precise process control, and reliable operation in demanding chemical processing applications.

Oil Industry

Engineered for reliable isolation, flow regulation, and backflow prevention, our valve solutions support upstream, midstream, and downstream oil production and refining operations.

Natural Gas

Providing leak-tight sealing, dependable flow control, and safe pipeline operation for natural gas transmission, storage, LNG, and distribution systems.

Metallurgy

Built to withstand high temperatures, abrasive media, and harsh operating conditions in steelmaking, smelting, and metallurgical processing.

Power Generation

Ensuring reliable isolation, accurate flow control, and long-term performance in steam, boiler, turbine, and power plant systems.

Pharmaceutical

Delivering hygienic, precise, and contamination-free flow control for pharmaceutical manufacturing and clean process applications.

Steel Industry

Designed for high-temperature, high-pressure, and severe-service conditions in iron making, steelmaking, rolling mills, and auxiliary process systems.

New Energy

Supporting hydrogen, LNG, carbon capture, battery materials, and renewable energy projects with advanced valve solutions for safe and efficient process control.