Cryogenic Valve Manufacturer in India

Cryogenic valves are engineered for liquefied gases and other very-low-temperature media, where thermal contraction, material toughness and stem sealing require special attention. An extended bonnet helps keep packing away from the cold zone, while suitable seats and controlled assembly support low-temperature shut-off. Speciality Valve configures each valve for the minimum design temperature, medium, pressure class, orientation and leakage requirement.

Cryogenic Valve Types:

Speciality Valve provides different valve designs for isolation, non-return, throttling and emergency shut-off duties.

• Cryogenic Ball Valve: Quarter-turn isolation for LNG and low-temperature transfer lines.

• Cryogenic Check Valve: Prevents reverse flow in cryogenic piping.

• Cryogenic Emergency Cut-Off Valve: Provides rapid isolation for storage and transfer systems.

• Cryogenic Gate Valve: Straight-through shut-off for cryogenic pipelines.

• Cryogenic Globe Valve: Used where isolation and controlled flow are required.

• Cryogenic Pneumatic Actuated Globe Valve: Enables remote pneumatic operation.

• Cryogenic Steam Jacket Globe Valve: Uses an external jacket to maintain or control temperature around the valve body or process area where required for the specific service.

• Forged Cryogenic Trunnion Ball Valve: Provides supported-ball isolation for demanding pressure duties.

Extended Bonnet Design:

The extended bonnet is one of the defining features of many cryogenic valves. It increases the distance between the cold process medium and the stem-packing area, helping maintain the packing at a more suitable operating temperature.

Depending on valve design, cryogenic construction may also include:

• Extended stem arrangement

• Low-temperature-qualified seats and seals

• Pressure-relieving cavity design for applicable ball valves

• Blowout-resistant stem construction

• Anti-static provision where required

• Reduced leakage stem packing

• Pneumatic or electric actuator integration

• Oxygen-cleaning provisions where specified

• Material traceability

Bonnet length and orientation should be selected according to the process temperature and installation requirements.

Cryogenic Valve Specifications:

Cryogenic Sealing and Operating Considerations:

Cryogenic sealing depends on more than the seat material alone. Differential contraction between the body, trim, stem and seat can affect shut-off as temperature falls.

The valve design should therefore be reviewed for:

• Seat preload

• Stem alignment

• Packing arrangement

• Body-to-bonnet sealing

• Cavity pressure relief

• Required leakage rate

• Operating torque or actuator thrust

• Cycling frequency

• For oxygen service, cleaning procedures and material compatibility may also form part of the project specification

Cryogenic Valve Design and Testing Standards:

Depending on project requirements, cryogenic valve design and testing may reference:

• ISO 28921-1:2022 – Design, manufacturing and production testing

• ISO 28921-2:2015 – Type testing

• ASME B16.34 – Valve construction and pressure-temperature requirements

• API 598 – Inspection and pressure testing

Low-temperature testing may verify valve operation, seat leakage and sealing performance under specified cryogenic conditions

Cryogenic Valve Applications:

Cryogenic valves are used across industries that store, process or transfer liquefied gases and other extremely low-temperature media. Speciality Valve configures valve designs for:

• LNG Liquefaction and Regasification: Process isolation, loading/unloading and LNG transfer systems.

• Cryogenic Storage and Transfer: Low-temperature storage tanks, transfer lines and terminal systems.

• Industrial Gas Systems: Liquid nitrogen, argon and other cryogenic gas handling systems.

• Air Separation Plants: Cryogenic separation and transfer systems.

• Low-Temperature Petrochemical Processes: Separation, storage and process duties involving low-temperature media.

• Marine LNG Systems: LNG carriers, bunkering and cryogenic fuel-transfer systems.

Share the process medium, minimum design temperature, pressure class and leakage requirements with Speciality Valve for cryogenic valve selection and quotation.