- Cryogenic Butterfly Valve
Falcon Flow Control Cryogenic Butterfly Valve
A lightweight and compact valve solution designed for efficient flow control and tight shut-off in cryogenic service conditions down to -196°C.
Full Description
The Falcon Flow Control Cryogenic Butterfly Valve is engineered for flow regulation and shut-off duties in cryogenic gas and liquefied gas systems such as LNG, LOX, LIN, and LAR. Featuring a compact design, high Cv values, and an extended bonnet, it offers safe and efficient operation in applications with extremely low temperatures.
Designed with a triple offset or high-performance double offset disc configuration, the valve ensures low torque operation, long sealing life, and minimal wear. The metal or soft-seated options provide optimal performance across a wide temperature and pressure range, while minimizing thermal contraction stress.
This valve is ideal for applications where space is limited but high flow capacity and reliable sealing are required.
Features & Benefits
Extended bonnet design
Isolates stem and packing from cryogenic media to avoid freezing
Triple or double offset disc
Provides tight shut-off and reduced seat wear
Bi-directional sealing
Allows flexibility in installation
Low torque operation
Compatible with smaller actuators, reducing automation cost
Fire-safe and anti-static
Optional for critical LNG installations
Actuation Options
- Manual Lever/Gearbox
- Pneumatic Actuator
- Electric Actuator
- Hydraulic or Electro-hydraulic (on request)
- Smart Positioners (ATEX/IECEx options)
Application Segments
LNG transportation and storage terminals
Cryogenic air separation plants
Liquid oxygen and nitrogen systems
Hydrogen fueling stations
Cold box and vaporizer systems
Space and aerospace cryo applications
Product Line
Falcon Flow Control CryoLine Series
Butterfly Valves for Low-Temperature & LNG Service
Size Range
NPS (inch)
DN (mm)
2” – 36”
DN 50 – DN 900
Pressure Class
Standard
Rating
ASME
Class 150 – 600
EN/DIN
PN 16 – PN 100
Materials
- Body: CF8M (316 SS), CF3M, LC2, LCB
- Disc: 316 SS, Duplex SS, Inconel Overlay
- Shaft: SS316, Monel, Nitronic 50
- Seat: PTFE, RTFE, Metal (Stellite, Inconel)
- Packing/Gasket: Graphite/PTFE cryogenic sealing system
- Bonnet Extension: Stainless Steel cryogenic insulated tube
Standard Connections
- Wafer
- Lug
- Flanged (ASME B16.5, EN 1092-1)
- Butt Weld (ASME B16.25)
Design Standards
- BS 6364 – Cryogenic Valve Standard
- API 609 – Butterfly Valve Design
- ASME B16.34 – Pressure-Temperature Ratings
- ISO 28921 – Cryogenic Valves
- ISO 5211 – Mounting Pad for Actuators
- API 598 – Inspection & Testing
Testing
- Cryogenic immersion testing (-196°C)
- Pneumatic and hydrostatic seat and shell tests
- Helium leakage test for tightness
- Cycle test under simulated cryogenic flow
- Fire-safe testing (optional)