- Top-Entry Cryogenic Valve
Falcon Flow Control Top-Entry Cryogenic Valve
Cryogenic valve with top-entry design enabling easy inline maintenance, perfect for critical low-temperature systems where uptime and reliability are essential.
Full Description
The Falcon Flow Control Top-Entry Cryogenic Valve is engineered for reliable shut-off and control in ultra-low temperature applications involving liquefied gases such as LNG, liquid nitrogen, liquid oxygen, liquid argon, and liquid hydrogen. This valve features a top-entry body construction, which allows complete access to the internal components without removing the valve from the pipeline — a key advantage in critical operations where downtime must be minimized.
The extended bonnet ensures the valve operates safely at cryogenic temperatures down to -196°C (-320°F). Manufactured using CF8M stainless steel or equivalent cryogenic-rated materials, this valve offers excellent durability, corrosion resistance, and reliable long-term performance in harsh environments.
Features & Benefits
Top-entry design
Enables inline maintenance and reduces downtime
Extended bonnet
Prevents stem freezing at cryogenic temperatures
All-welded body or bolted bonnet
Application-specific integrity and serviceability
High seat tightness
Minimizes leakage of cryogenic fluid
Optional fire-safe design
Ensures protection in emergency conditions
Compact and space-saving layout
Ideal for skid units and cold boxes
Customization Options
- Actuated versions (manual, pneumatic, electric)
- Oxygen-cleaned assemblies
- Vacuum jacketed bonnet (on request)
- Position indicators and limit switches
- Low-emission packing for environmental compliance
- Smart valve integration with digital monitoring
Application Segments
LNG liquefaction and regasification plants
Hydrogen refueling systems
Air Separation Units (ASUs)
Aerospace ground fueling stations
Cryogenic storage tanks and cold boxes
Research facilities and laboratories
Product Line
Falcon Flow Control CryoTop Series
Top-Entry Cryogenic Valves for Inline Maintenance
Size Range
NPS (inch)
DN (mm)
½” – 12”
DN 15 – DN 300
Pressure Class
Standard
Class
ASME B16.34
Class 150 – 600
DIN / ISO
PN 16 – 100
Materials
- Body: CF8M / 316L SS / Monel / Inconel
- Trim: 316 SS / Stellite / Inconel X-750
- Bonnet: Extended type – 316 SS or Inconel
- Stem: 316L or Nitronic 50
- Seat Options: Metal-seated or PTFE / PCTFE insert
- Gaskets / Seals: Graphite, Spiral Wound, PCTFE
Standard Connections
- Flanged (ASME B16.5 / EN 1092-1)
- Butt Weld Ends (ASME B16.25)
- Socket Weld or Threaded (on request)
Design Standards
- BS 6364 – Valves for Cryogenic Service
- ASME B16.34 – Pressure-Temperature Ratings
- API 598 – Valve Inspection and Testing
- API 6D – Pipeline Valve Requirements
- ISO 21013 – Cryogenic Pressure Equipment
- PED 2014/68/EU, ATEX (on request)
Testing Procedures
- Cryogenic leakage testing at -196°C
- Helium seat and body leak detection
- Shell strength test per API 598 / ISO
- Blowout and stem pull test
- Cold shock test (LN₂ immersion)
- Functional actuation under cryogenic conditions