DUO-CHEK® Cryogenic High Performance Non-Slam Check Valves
Duo-Chek® High Performance Non-Slam Dual Plate Check Valves are the original mission wafer check valves now modified to meet the requirements of Cryogenic service
Features And Benefits
Technical Details
Applications
Literature
Certificates
Videos
Features And Benefits
- Robust Design capable of passing the stringent leak rate requirements at cryogenic temperatures
- Dual-plate designs that are compact and lightweight for efficient seating, operation and lower installation cost
- Independent springs with long legs to prevent seat scrubbing and provide non-slam performance
- Retainerless valve design without body penetration for critical service applications
Technical Details
MATERIALS OF CONSTRUCTION
- Body Materials: Stainless steel, Aluminum Bronze, and Monel
- Other Materials: Available on request
SIZE RANGE
- 2″ to 36″
PRESSURE RATING
- ASME Pressure Class 150 – 600
- API pressure classes up to 15K
TEMPERATURE RANGE
- -196°C / -320°F to ambient
BODY CONFIGURATION
- Wafer, Lug, and Double-flanged
END CONNECTIONS
- Raised Face, Flat Face, RTF
Applications
Gas Production
- LNG (Liquiefaction / Regasification)
Chemicals and Petrochemicals
- Ethylene production
- Air Separation
Certificates
- ISO – Certification (Site) 9001 / 14000
- Pressure Equipment Directive (PED) 2014/68/EU
- BS 6364
- Shell DVT