Low Temperature Steel Globe Valve DN100 Price – -46°C Cryogenic Service
The low temperature steel globe valve DN100 is specifically engineered for -46°C cryogenic service, combining specialized materials with extended bonnet designs to ensure safe and reliable operation in demanding low-temperature applications. This article provides a comprehensive 2026 price reference and outlines the critical selection parameters for this specialized valve.The main globe valve product names of China globe Valve Network include:Manual Welding High Temperature and Pressure Globe Valve,Oxygen-specific Globe Valve,Pneumatic Flange Straight-through Globe Valve,QJ-1A Pneumatic Pipeline Globe Valve,QJ-1B Pneumatic Angle PipelineGlobe Valve,QJ-1C Pneumatic Pipeline Globe Valve,QJ-2 Pneumatic Pipeline Globe Valve,QJ-3 Pneumatic Pipeline Globe Valve.
2026 Price Reference for -46°C Low Temperature Steel Globe Valve DN100
As of 2026, the market price of a low temperature steel globe valve DN100 suitable for -46°C conditions generally ranges from ¥2,800 to ¥6,800 RMB (approximately $385 to $935 USD). However, this range varies significantly based on material grade, pressure rating, and design features:
- Standard-grade models with LCB/LCC low-temperature steel bodies and manual operation are priced in the ¥2,800 to ¥4,500 RMB range. These are suitable for most general low-temperature applications with moderate operating conditions.
- Premium models featuring LC3 alloy steel or stainless steel low-temperature series with higher toughness and impact resistance can reach ¥5,000 to ¥6,800 RMB. These offer superior performance in demanding cryogenic services and longer service life.
- Specialized configurations with STL hard alloy sealing surfaces, pneumatic or electric actuation, or butt-weld connections may fall outside these ranges. For reference, some imported low-temperature globe valves for cryogenic services are listed at approximately ¥1,500 RMB for DN100 sizes, while premium configurations from specialized manufacturers may exceed ¥8,000 RMB per unit.
It is important to note that these are reference prices. The final transaction cost depends on several factors including the specific material grade, pressure rating, actuation type, connection standard, and brand. Prices shown on B2B platforms are often base prices; detailed quotations should be requested based on complete technical specifications.
Valves designed for -46°C service incorporate several critical engineering features that distinguish them from standard globe valves.
Extended bonnet (long neck) design is mandatory for cryogenic service. The extended bonnet keeps the packing box and stem threads away from the low-temperature zone, preventing packing freeze-up and ensuring smooth operation. This design also minimizes heat ingress from the environment, which is critical for preventing internal fluid evaporation and pressure buildup. The long neck structure ensures that the packing box temperature remains above 0°C even when handling cryogenic media.
Metal-to-metal hard sealing with STL (Stellite) hard alloy overlays provides superior erosion resistance and a long service life in cryogenic applications. Unlike PTFE or soft seals that can become brittle at low temperatures, hard alloy seats maintain sealing integrity under the severe thermal shrinkage and pressure fluctuations typical of cryogenic systems.
Anti-friction design addresses the fact that cryogenic valves cannot rely on lubrication for moving parts. The valve body and internal components are specifically selected to prevent galling, seizing, and wear, ensuring reliable operation over many cycles.
Key Selection Parameters for -46°C Low Temperature Globe Valves
When specifying a low temperature steel globe valve DN100 for -46°C service, several critical parameters must be carefully defined.
Material grade – Specify the required low-temperature steel grade. LCB is suitable for -46°C service. For higher toughness requirements, LC3 or stainless steel low-temperature series may be needed. Always verify that the material has passed -46°C low-temperature impact testing.
Pressure rating – DN100 low-temperature globe valves are available in ratings from PN16 to PN64 (or Class 150 to 900). The pressure rating must exceed the system's maximum operating pressure at the low-temperature condition.
End connections – Flanged connections are the most common, offering ease of installation and maintenance. Butt-weld connections are preferred for permanent, leak-free joints in critical systems and may be slightly lower in cost than flanged models. Confirm connection standards (GB/T, HG/T, or DIN/ANSI equivalents) match your piping system.
Sealing surface material – For extended service life in cryogenic applications, STL hard alloy sealing surfaces are recommended. This upgrade commands a premium but significantly improves erosion resistance and longevity.
Actuation type – Manual handwheel operation is the most cost-effective option. For remote or automated systems, pneumatic or electric actuators can be specified but will increase the total cost by 40% to 60%.
Compliance standards – Confirm that the valve complies with BS 6364 or GB/T 24925 standards for low-temperature service. These standards ensure the valve has been designed and tested for cryogenic conditions.
Purchasing Recommendations for Buyers
When sourcing a low temperature steel globe valve DN100 for -46°C service, follow these procurement guidelines.
Define your operating conditions precisely – Provide the supplier with the exact media (e.g., LNG, ethylene, propylene, ammonia), operating temperature (-46°C), maximum pressure, and cycling frequency. This ensures the correct material grade and pressure rating are selected.
Request critical documentation – Ask for -46°C low-temperature impact test reports for all pressure-containing parts and cryogenic treatment records. These documents verify that the valve has been properly manufactured for low-temperature service.
Verify compliance standards – Confirm the valve complies with relevant standards such as BS 6364 or GB/T 24925 for low-temperature valves.
Compare multiple qualified suppliers – Prices vary significantly between domestic and imported brands, and between different material grades. Obtain proposals from at least three professional low-temperature valve manufacturers with your complete technical specifications. One reference for a DN100 low-temperature globe valve from a specialized manufacturer is listed at approximately ¥1,500 RMB, but this may be a base price; detailed quotations should be requested.
The low temperature steel globe valve DN100 is the proven solution for -46°C cryogenic service, offering the material toughness, sealing integrity, and design features required for reliable operation in demanding low-temperature applications. As of 2026, prices range from approximately ¥2,800 to ¥6,800 RMB for manual models, with the final cost determined by material grade (LCB, LC3, or stainless steel), pressure rating, sealing surface material, and actuation type.
When selecting this valve for -46°C service, pay careful attention to the material certification (verify -46°C impact testing), extended bonnet design, hard alloy sealing surfaces, and compliance with BS 6364 or GB/T 24925 standards. For the most competitive and accurate pricing, contact manufacturers directly with your complete technical specifications and request low-temperature impact test reports and cryogenic treatment records. Investing in a correctly specified low temperature steel globe valve is not merely a purchase—it is an investment in the operational safety, reliability, and integrity of your cryogenic systems.
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