Features & Benefits
Subsea swing check valves are suitable in water depths to 500 mt (1700 fit) and maintain an average service life of 25 years. Available in both forged or cast materials, the design ensures total reliability for high pressure and high temperature services.
The swinging action of the disc away from the seat allows forward flow and when the flow is stopped, the disc returns to the seat, preventing backflow. Swing check valves are suitable for installations in lines where pigging operations are required for various maintenance services. The piggable design makes the swing check valve ideal for installation in riser pipelines and subsea applications. Convenience of operation and simple in-line maintenance are essential features of our design. Internal parts can be inspected and repaired without removing the valve off the pipeline even where space is restricted as in the top-entry trunnion ball valve construction. The valve can be installed in both vertical and horizontal positions and offers unsurpassed quality and reliability– while the simple design minimizes maintenance costs.
Material selection is fully customizable to meet customers project specifications
Seat design
- Metal-seated with hardfacing on disk and seat.
- Welded-in-seat ring
Features
- Body/bonnet sealing with a secondary environmental soft seal as additional barrier to seawater ingress into the valve
- Easy in-line maintenance as in the top-entry trunnion ball valve construction
- Suitable for horizontal and vertical (flow-up) installation
- Suited for low velocity service
- Fully piggable design
- De-clutchable device for lock opening during pipeline cleaning with ROV interface
- Suitable for flow rates with corrosive and dirty fluids
- Cathodic protection for the whole system, on request
Operator
- automatic
Testing & certifications
- Compliance with API 6DSS Inspection and testing
- PED 2014/68/UE
- Hyperbaric validation testing as per API 6DSS
Product Details
Spec | Detail |
---|---|
Size Range | NPS 2 - 36 (DN 50-900) |
Pressure Class | ASME 150 - ASME 2500 |
Standard Connections | Flanged (RF, RTJ) as per B16.5 &B16.47, Butt Welded as per B16.25, Hub connection |
Series | CSK |
Valve design | based on API 6DSS and customer requirements |
Temperature range | -76 to 410°F (-60 to 210°C) |
Face-to-face | As per API 6D standard |
End connections | RF, RTJ as per B16.5 &B16.47 BW, Butt Welded as per B16.25 Hub connection |
Body design | forged or cast one-piece |
Quality That Lasts
Precision Engineered
Our products, crafted with cutting-edge precision, set the industry standard for quality, reliability, and versatility across an expansive range of applications.
Long-Lasting & Durable
Velan leverages advanced engineering capabilities and innovation to create durable valves that meet critical industrial needs in the areas of nuclear power, mining, oil and gas, and more.
Certified & Tested
Innovation is our DNA. From our first steam trap to advanced cutting-edge valve designs, we are committed to providing solutions that define the highest standards of quality and performance.
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