Cryogenic Valves
Cryogenic Butterfly Valve
Extended-bonnet triple-offset cryogenic butterfly valves designed for reliable, bi-directional bubble-tight isolation in LNG, liquid oxygen, and nitrogen systems.
OVERVIEW
High-Performance Cryogenic Butterfly Isolation
Our cryogenic butterfly valves are designed to provide zero-leakage isolation in low-temperature and cryogenic applications down to -196°C. Featuring a triple-offset design to eliminate friction between the seat and disc seal ring during rotation, these valves minimize operating torque and prolong seal life. The gas column extended bonnet keeps the stem packing away from the cryogenic liquid, preventing packing freeze and ensuring fugitive emission safety.
Key Features
- ✔️ Ultra-Low Temperature Design - Engineered for cryogenic service applications
- ✔️ Bubble-Tight Sealing - Ensures reliable, leak-free shut-off
- ✔️ Extended Bonnet Construction - Minimizes heat transfer and protects stem seals
- ✔️ Low Torque Quarter-Turn Operation - Smooth, fast, and efficient valve control
- ✔️ Ideal for LNG & Industrial Gases - Suitable for LNG, LOX, LIN, LAR, LPG, and other cryogenic media
Brand Partner
Technical Specifications
| Parameter | Details |
|---|---|
| Size Range | 2″ - 48″ (DN50 - DN1200) |
| Pressure Class | Class 150# - 900# (PN10 - PN150) |
| Temperature Range | -196°C to +120°C |
| Body Materials | Stainless Steel (CF8, CF8M, CF3, CF3M), LCB/LCC |
| Disc Materials | Stainless Steel (CF8M, CF3M) |
| Seat Materials | Kel-F, PCTFE, Metal-to-Metal with Stellite 6 face |
| Bonnet Extension | gas column length compliant with BS 6364 / EN 1626 |
| End Connections | Double Flanged, Wafer, Lug, Butt Weld Ends |
| Operation | Gear Operator, Pneumatic or Electric Actuator |
| Design Standards | API 609, ASME B16.34, BS 6364 |
| Testing Standards | BS 6364 (Cryo Testing), API 598 |
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