Ultra-low Temp Butterfly Valves
FZV’s Cryogenic Butterfly Valves for ultra-low temperature service have been developed by FZV’s engineering team and through the investment in FZV’s cryogenic laboratory. These engineered, high-performance valves, leverage FZV’s CNC machining equipment, other speciality equipment, and clean assembly areas to ensure a consistent and high-quality product.
Key Applications
- Low-temperature industries such as LNG, LPG, LEG, air separation, etc.
Design Features
- Sizes from NPS 2” to 48”(DN50 to DN1200)
- Class range from 150 to 900 （PN20 to PN150）
- Working temperature: -196℃ to 340℃
- The main parts subject to a temperature ≤-101℃ are subzero treated to prevent valve deformation under ultra-low temperatures
- The sealing faces of the valve seat and clack are hard-faced with alloy to improve the erosion resistance and extend the service life of the valve
- Compact structure, easy installation and disassembly, repair friendly and lightweight
- Adjustment capable and can be used as a control valve
- Zero-leakage sealing
- Blow-off prevention design to improve safety
- Drainboard design to effectively prevent the inflow of condensate to the insulation layer
- Low leakage packing in valve stem sealing meets the requirement for low leakage
Reference
Design Standards
- API 60
- ASME B16.3
- BS 6364
Face-to-Face
- ASME B16.10
- B/T 12221
- PI 609
End Connection
- ASME B16.5
- SME B16.47
- SME B16.25
- B/T 9113
Test Standards
- API 59
- ISO 5208
- B/T 26480
- B/T 13927
- S 6364