Cryogenic Valves

Features of Our Cryogenic Valves

• Extended Bonnet Design – Prevents heat transfer and minimizes the risk of seat freezing.
• Fire-Safe & Fugitive Emission Control – Ensures safety in LNG, oxygen, and hazardous fluid applications.
• Pressure-Sealed Body Construction – Provides superior strength under extreme pressures.
• Low Torque Operation – Smooth actuation even at ultra-low temperatures.
• Bubble-Tight Shut-Off – Prevents leaks, critical for cryogenic fluid containment.
• Vacuum Jacketed Options – Reduces condensation and frost build-up.
• Multiple End Connections – Available in flanged, butt-weld, socket weld, and threaded ends.
• Compliance with Global Standards – Meets ASTM, ANSI, ASME, DIN, and EU directives for cryogenic applications.

Types of Cryogenic Valves we offer

1. Cryogenic Ball Valve – High Flow with Tight Sealing

A cryogenic ball valve is designed to provide high flow capacity while maintaining a bubble-tight seal, making it ideal for handling liquefied gases like LNG, LOX, and LH2. The valve features a quarter-turn operation, allowing for quick and easy opening and closing, which is crucial in cryogenic applications where efficiency and reliability matter. To prevent seat freezing, these valves incorporate extended bonnets and specialized sealing materials that remain flexible at ultra-low temperatures. Their robust design ensures zero leakage while offering low torque operation, making them a preferred choice for LNG plants, medical gas systems, and cryogenic storage tanks.

2.Cryogenic Gate Valve – Full Flow & Minimal Pressure Drop

A cryogenic gate valve is perfect for applications requiring unrestricted flow and minimal pressure loss. Its rising stem design ensures that the valve is fully open or closed, preventing flow turbulence and maintaining efficiency in LNG terminals, industrial gas plants, and aerospace applications. These valves are equipped with an extended bonnet, which prevents the stem packing from freezing and ensures smooth operation even at -196°C. They are commonly used in large-diameter pipelines where full flow is essential, such as in LNG transportation and liquid hydrogen storage.

3. Cryogenic Globe Valve – Precise Flow Control

A cryogenic globe valve is the go-to solution when accurate flow regulation is required in cryogenic systems. Unlike gate valves, globe valves provide throttling control, making them ideal for applications where the flow rate needs to be adjusted gradually, such as in cryogenic distillation columns, medical gas distribution, and research laboratories. These valves feature high-strength sealing materials to withstand extreme temperatures and an extended stem to prevent freezing. Their durable construction ensures long service life while maintaining optimal flow characteristics under cryogenic conditions.

4. Cryogenic Check Valve – Preventing Backflow in Cryogenic Pipelines

A cryogenic check valve is essential for preventing backflow in pipelines transporting liquefied gases like LNG, liquid nitrogen, and liquid oxygen. These valves operate automatically, relying on differential pressure to open or close, ensuring a one-way flow of cryogenic fluids. Cryogenic check valves are designed with spring-loaded or swing-type mechanisms and come with an extended bonnet to prevent frosting and seat freezing. They are widely used in cryogenic storage tanks, industrial gas distribution, and aerospace fueling systems, where backflow prevention is critical for safety and system efficiency

5. Cryogenic Butterfly Valve – Lightweight & Quick Shut-Off

A cryogenic butterfly valve is known for its compact design, lightweight construction, and rapid shut-off capability. Unlike ball or gate valves, butterfly valves operate with a quarter-turn mechanism, making them ideal for large-diameter pipelines in LNG plants, cryogenic gas processing, and storage facilities. These valves use low-temperature-resistant materials to maintain flexibility and prevent leaks at ultra-low temperatures. The combination of low torque requirements, bubble-tight sealing, and easy automation makes cryogenic butterfly valves a cost-effective solution for high-flow cryogenic applications.

6. Cryogenic Safety Relief Valve – Overpressure Protection

A cryogenic safety relief valve plays a vital role in protecting cryogenic systems from overpressure conditions. Since liquefied gases expand rapidly when warmed, excessive pressure can build up in cryogenic storage tanks, pipelines, and processing units, potentially leading to hazardous situations. These valves are designed to automatically release excess pressure, preventing equipment failure and ensuring safe operations. Made from high-strength stainless steel and specialized alloys, cryogenic safety relief valves comply with API 526, BS 6364, and ASME Section VIII standards to provide reliable pressure relief in extreme environments.