VB100 Cryogenic Triple-Offset Butterfly Valve
Designed for cryogenic and ultra-low temperature applications involving process media such as ethylene, propylene, LNG, and liquid nitrogen. Features excellent sealing performance, low operating torque, high allowable pressure differential, reliable operation, and extended service life.
Technical data
| Nominal Pressure | Class150–Class600; PN10–PN110 | Nominal Diameter | DN150–DN1,500; 6”–60” |
| Operating Temperature | -196°C to +200°C | End Connection | Flanged, welded and other configurations |
| Leakage Rating | Conforming to BS6364 |
Features & Benefits
Friction-Free Operation and Extended Service Life
The triple-offset design enables immediate seat disengagement upon opening and final-stage contact upon closing, requiring low breakaway torque.
Anti-blowout Stem Design
The one-piece stem is manufactured from high-strength stainless steel to withstand high differential pressure. The stepped structure effectively prevents stem blowout and enhances valve safety.
Packing Freeze Protection
The extended bonnet positions the stem packing away from cryogenic media to maintain packing integrity and service life.
Interchangeable Sealing Components
With an independent seat construction, both the valve seat and sealing ring are replaceable and interchangeable.
Low Fugitive Emission Design
The packing system features a Belleville spring live-loading compensation design to minimize fugitive emissions at the packing in accordance with TA-Luft emission standards.
Certifications
Applications
Oil & Gas:
Control and shutoff applications across the LNG value chain, petrochemical cryogenic units, and air separation plants. Core applications involve reliable shutoff and safe isolation for cryogenic environments down to -196°C with flammable and explosive media.
Aerospace
Control and shutoff applications in rocket propellant loading systems. Core applications involve reliable shutoff and safe isolation for cryogenic environments down to -196°C with flammable and explosive media.
Case Studies
Hainan International Commercial Aerospace Launch Center
Primarily used for controlling the loading and supply of cryogenic propellants including liquid oxygen, liquid nitrogen, and liquid methane. Core functions include precise flow regulation and on-off control, supporting safe and accurate propellant loading into launch vehicle tanks prior to launch.
Shenzhen LNG Receiving Terminal
Primarily used for controlling the full process of transportation, storage, and regasification of LNG at -162°C and cryogenic auxiliary media (liquid nitrogen/BOG) at -196°C. Core functions include LNG storage tank inlet isolation, ship unloading line on-off control, BOG handling, and flow regulation with emergency shut-off for large-diameter, low-differential-pressure pipelines.
