A forged steel low-temperature globe valve is an essential control device engineered for ultra-low temperature applications, reliably operating in environments ranging from-196°C to -150°C. Designed specifically for liquefied natural gas (LNG) pipelines, liquid oxygen storage, and chemical cryogenic systems, this specialized valve ensures durable, leak-free performance under extreme thermal conditions.The main stop valve product names of China Stop Valve Network include:Forged Steel Low-Temperature Globe Valve,Cryogenic Globe Valve,LNG Valve,Extended Bonnet Globe Valve,Low Temperature Valve,Bellows Seal Globe Valve,Flange Globe Valve,Austenitic Stainless Steel Valve.

Key Design and Performance Advantages

Extended Bonnet Design
The extended bonnet structure differentiates this valve from standard temperature models. By significantly elongating the bonnet, it effectively isolates the cryogenic fluid from the upper valve components. This critical design keeps the packing chamber at near-ambient temperature, preventing packing freeze and seal failure—a common cause of leakage in deep-cold applications.

Cryogenic Material Selection
Component materials are scientifically selected to withstand thermal stress and prevent brittleness:

For temperatures above -100°C:Specially treated low-temperature carbon steel is used.

For temperatures below -100°C:Austenitic stainless steel (304/316) or high-grade nickel-based alloys are mandatory for the valve body and critical parts.

Valve stems undergo surface hardening treatments to enhance wear and galling resistance in oil-free lubrication environments.

Safety and Reliability Engineering
Built for operational integrity, these valves feature:

Minimized heat ingress to prevent medium vaporization.

Anti-galling moving parts for smooth, maintenance-free operation.

Critical components designed to comply with international explosion-proof safety standards.

Selection and Application Guidelines

Forged steel low-temperature globe valves are the ideal solution for LNG refueling stations, air separation units (ASU), and chemical processing pipelines. When selecting a valve, focus on these critical factors:

Minimum Operating Temperature: Confirm the valve's rated temperature matches your process requirements.

Material Certifications: Ensure compliance with recognized standards like BS 6364 for low-temperature valves or ISO 28921 for LNG applications.

Manufacturer Qualification: Choose suppliers with proven expertise, relevant testing facilities (e.g., cryogenic chamber testing), and a track record in cryogenic valve manufacturing.

Conclusion

Through its specialized extended bonnet, stringent cryogenic material selection, and precision forging, the forged steel low-temperature globe valve delivers indispensable safety and control for critical low-temperature infrastructure. It remains a reliable guardian for managing the flow of cryogenic media with maximum integrity.

Do you still need to know or purchase the following globe valve products:

• QJ-3 Pneumatic Pipeline Globe Valve
• QJ-4 Pneumatic Inner Thread Pipeline Globe Valve
• QJ-5 Pneumatic Internal and External Thread Pipeline Globe Valve
• QJ-6 Pneumatic Angle External Thread Pipeline Globe Valve
• QJ-7 Pneumatic External Thread Pipeline Globe Valve
• Self-sealing Straight-through Globe Valve