Cryogenic Gate Valve

Engineered for extreme low-temperature services, the Cryogenic Gate Valve provides dependable isolation for LNG, liquefied gases, and other cryogenic media where conventional valve designs may be affected by thermal contraction and material embrittlement. Its extended bonnet construction positions the stem packing and operating components away from the cold zone, while specially selected low-temperature materials and sealing components maintain pressure-boundary integrity throughout cryogenic operation and thermal cycling.

The Cryogenic Gate Valve is particularly suited for LNG terminals, liquefaction and regasification facilities, cryogenic storage and transportation systems, natural gas processing, and industrial gas applications. Its full-bore flow passage, low flow resistance, and robust isolation mechanism make it an effective choice for critical cryogenic pipeline and process services requiring secure shut-off and dependable low-temperature performance.

Inquire Now Next Products

Technical Specifications

Product description:	Cryogenic Gate Valve
Model:	Z40H Cryogenic Gate Valve
Nominal diameter:	NPS 2”～48”
Operating temperature:	-196℃～300℃(the range of service temperature may vary for different materials )
Nominal pressure:	CLASS 150～2500
Material:	Main material: A351 CF8、CF8M、CF3、CF3M;A352 LCB、LCC, etc.
Design standard:	API 600、API 6D、ASME B16.34、GB/T 12234、GB/T 12224、BS 6364
Structural length:	ASME B16.10、GB/T 12221
Connecting end:	ASME B16.5、ASME B16.47、ASME B16.25、GB/T 9113、GB/T 12224
Test standard:	API 598、ISO 5208、GB/T 26480、GB/T 13927、BS 6364
Operation method:	Non-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit
Application fields:	For application of liquid nitrogen, liquid hydrogen, liquid oxygen, etc. in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, chemical engineering in urban construction, etc.

Features & Benefits

Cryogenic Material Selection

Body, gate, stem, and trim materials are selected to retain toughness and mechanical integrity at extremely low temperatures.

Extended Bonnet Design

The extended bonnet creates a thermal barrier between the cryogenic fluid and stem packing, helping maintain seal performance and prevent excessive cold exposure.

Reliable Isolation

The gate provides positive shut-off with minimal obstruction to the flow path when fully open.

Full-Bore Flow Passage

The unobstructed bore minimizes pressure loss and allows efficient movement of cryogenic media through the pipeline.

Thermal Cycling Resistance

Sealing and pressure-boundary components are designed to accommodate repeated temperature changes during start-up, shutdown, and normal operation.

Low Flow Resistance

The raised gate clears the flow passage completely when open, making the valve suitable for systems where pressure drop must be minimized.

Low-Temperature Sealing

Specialized packing and seat configurations help maintain containment despite thermal contraction and dimensional changes.

Fire-Safe Configuration Available

Fire-safe designs can be specified for critical LNG and hydrocarbon services and tested to applicable standards.

Maintenance-Friendly Arrangement

Accessible stem and bonnet components facilitate inspection and servicing while keeping critical operating components away from the cold zone.

Wide Cryogenic Application Range

Suitable for LNG plants, storage tanks, loading and unloading systems, regasification facilities, natural gas processing, and industrial gas installations.

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.