Cryogenic Valves

Cryogenic Pull-Off & Break-Away Valves

Calibrated cryogenic break-away couplings designed to protect loading systems by automatically disconnecting and shutting off flow in the event of tanker pull-away.

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OVERVIEW

Safe Loading & Unloading Protection

Our cryogenic pull-off (break-away) valves are critical safety devices installed in LNG and liquid gas transfer lines. In the event of an accidental vehicle movement or vessel drift during loading/unloading, the coupling automatically disconnects when a predetermined tensile load is reached. Spring-loaded internal valves in both halves instantly shut off, preventing any spillage of cryogenic fluid and protecting the terminal piping, hoses, and tankers from mechanical damage.

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Key Features

✔️ Automatic Emergency Disconnection - Safely separates transfer lines during accidental pull-away events
✔️ Leak-Free Double Shut-Off - Minimizes product loss with automatic sealing on both ends
✔️ Cryogenic Temperature Rated - Engineered for reliable operation in ultra-low temperature applications
✔️ Enhanced Safety Protection - Prevents hose damage, spills, and equipment failure during loading and unloading
✔️ Ideal for LNG & Industrial Gases - Suitable for LNG, LOX, LIN, LAR, LPG, and other cryogenic transfer systems

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Technical Specifications

Parameter	Details
Size Range	1″ - 8″ (DN25 - DN200)
Pressure Rating	Class 150# - 300# (PN10 - PN40)
Temperature Range	-196°C to +80°C
Body Material	Stainless Steel (SS316L / CF8M)
Seat Materials	PCTFE, PTFE
Internal Valves	Spring-loaded check valves (on both halves)
Trigger Mechanism	Calibrated shear bolts / pins
Activation Force	Engineered based on pipeline load limits
End Connections	Flanged (ANSI/DIN), Threaded (NPT), Butt Weld Ends
Design Standards	EN 1626, ISO 21011, BS 6364
Testing Standards	EN 12266-1, API 598