Cryogenic Valve

Cryogenic valve manufacturers in USA 

SVR Global produces cryogenic valves specifically designed to operate in extremely cold conditions within LNG systems, industrial gases manufacturing plants, aerospace and chemical process plants. Every valve is made to ensure sealing, stability, and proper functioning in conditions much colder than those required by ordinary industrial valves.

What is a Cryogenic Valve?

The cryogenic valve is a special type of flow regulating system that has been designed in such a way that it can work in fluid systems containing liquefied gases at very low temperatures, usually below –150°F (-101°C). What distinguishes cryogenic valves from other types of valves is their design features.

How Cryogenic Valves Differ from Standard Industrial Valves ?

• Regular valves are not meant for managing the problems of thermal shrinkage, embrittlement of material, and icing due to cryogenic fluids.

• Cryogenic valves are equipped with long bonnets, materials compatible with low temperatures, and sealing mechanisms that are able to keep tight tolerances despite thermal cycles.

Temperature Range Classification for Cryogenic Service:

Cryogenic services start from below -150°F (-101°C) and go all the way down to those temperatures that are needed to create liquefied gases like LNG (-260°F / -162°C), liquid nitrogen (-320°F / -196°C) liquid oxygen (-297°F / -183°C). 

Valve selection depends on matching material and design tolerances to the specific fluid's boiling point.

Types of Cryogenic Valves Manufactured by SVR Global:

• Cryogenic Ball Valve
  Quarter turn valve offering tight shutoff for LNG transfer lines and industrial gas distribution requiring fast isolation.

• Cryogenic Check Valve
  Prevents reverse flow in cryogenic piping, protecting pumps and vaporizers from backflow damage.

• Cryogenic Emergency Cut Off Valve
  Provides rapid, fail safe shutoff during system upset or emergency conditions to isolate cryogenic fluid flow and limit leakage risk.

• Cryogenic Gate Valve
  Full bore, straight line design for minimal pressure drop across cryogenic transmission piping.

• Cryogenic Long Stem Globe Valve
  Extended stem length positions the actuator and packing further from the cold fluid zone, suited for deep set or below grade cryogenic installations.

• Cryogenic Pneumatic Actuated Globe Valve
  Globe valve paired with a pneumatic actuator for automated, precise throttling control in cryogenic flow systems.

• Cryogenic Short Stem Globe Valve
  Compact stem design for above ground or space constrained cryogenic installations requiring throttling control.

• Cryogenic Steam Jacket Globe Valve
  Incorporates a steam jacket around the valve body to prevent ice formation and maintain operability in cryogenic service exposed to ambient moisture.

• Forged Cryogenic Trunnion Ball Valve
  Body made from forging technology with trunnion mounted ball to reduce torque and provide good seal in cryogenic pipes with high pressures.

Cryogenic Valve Materials and Temperature Ratings:

Stainless Steel Grades for Cryogenic Applications

The austenitic grades of stainless steel, such as the 304, 304L, 316, and 316L series, are used in cryogenic valves because of their ability to resist fracturing at low temperatures.

Low Temperature Carbon Steel

This grade of steel is used in certain cryogenic applications where the fluid's temperature and pressure permit, and it is more economical than stainless steel.

Applications of Cryogenic Valves:

• LNG Systems - isolation, flow control, and safety relief across liquefaction, storage, and regasification stages

• Industrial Gas Production - oxygen, nitrogen, and argon separation and distribution systems

• Aerospace and Rocket Propulsion Systems - cryogenic fuel and oxidizer flow control

• Chemical Processing Plants - low temperature reaction and storage system flow control

End Connections:

• Flanged Ends - bolted connection, common for cryogenic service (ASME B16.5/B16.47)

• Butt Weld Ends - continuous joint for high pressure, large diameter lines

• Socket Weld Ends - compact welded joint for smaller diameter lines

• Threaded Ends - limited use, small/low pressure instrumentation only

• Tri-Clamp Ends - for frequent disassembly in lab/specialty gas systems

Standards and Certifications:

• BS 6364 - cryogenic valve testing and seat leakage requirements

• MSS SP-134 - low-temperature valve testing methods

• ASME B16.34 - pressure temperature ratings and materials

• ASME B16.5 / B16.47 - flange dimensions and pressure classes

• API 598 - inspection and testing procedures

• API 6D - pipeline valve design and testing

• ISO 9001 - quality management certification

• NACE MR0175 / ISO 15156 - sour service material resistance

• PED / CE Marking - required for European market compliance