DUO-CHEK® High Performance Non-Slam Check Valves
Duo-Chek® High Performance Non-Slam Dual Plate Check Valves are the original mission wafer check valves introduced to the market in the late 50’s
Features And Benefits
Technical Details
Applications
Literature
Certificates
Videos
Features And Benefits
- 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
STANDARD MATERIALS OF CONSTRUCTION
- Body Materials: Cast Iron, Carbon Steel, Stainless Steels, Duplex Stainless Steel, Super Duplex
- Resilient Seat Materials: EPDM, Buna-N, Neoprene, and Viton-B
- Other materials available on request (contact factory)
SIZE RANGE
- 2″ to 88″
PRESSURE RATING
- Class 125 – 2500
BODY CONFIGURATION
- Wafer, lug, double flanged, weld end, hub end, and extended body styles
Applications
- Petroleum Refining
- Oil and Gas Production
- Chemicals and Petrochemicals
- Power Generation
- Steel/Primary Metals
- Marine
- Water and Wastewater
- Pulp and Paper
- FPSO
- LNG (Liquiefaction / Regasification)
- Renewable Energy
- Oil Transmission Pipelines
Certificates
- ISO – Certification (Site) 9001 / 14000
- BS 6364
- Shell DVT
- TSG Certification
- Russian TZR
- API 6FD
- API 594
- API 598
- ASME B16.5 & B16.47
- ASME B16.34
- API 6A
- PED 2014/68/EU