Features & Benefits
Subsea fully welded ball valves are suitable in water depths to 500 mt (1700 fit) and maintain an average service life of 25 years. Valves are designed with two or three fully welded forged pieces with a solid double trunnion configuration and two independent seats with bidirectional sealing ensuring the greatest level of tightness and reliability under high pressure and temperature conditions in all critical isolation services. The fully welded body construction ensures a lighter solution and avoids potential leak paths to the external environment. As a result, the valves are an excellent choice in marine and subsea pipelines. Subsea fully welded trunnion ball valves may be completed with a subsea gear and ROV receptacle for remote operation by ROV or with a handwheel for manual operation by the diver. As an alternative, valves can be fitted with hydraulic subsea actuators, fully compensated in a double or single acting configuration, with or without ROV override.
Seat design
- Soft or metal seated with hard facing on ball and seats
- Self relieving seats
- Double piston seats
Features
- Double block and bleed design (DBB)
- Anti-static device
- Anti-blowout stem
- Dynamic seals in O-ring/lip seal configuration
- CRA overlay on all dynamic sealing areas or on all wetted parts available
Operator
- Manual: Gear with ROV receptacle or handwheel
- Actuated: Hydraulic with or without ROV receptacle / handwheel override
baric compensator for operators
Testing & certifications
- Compliance with API 6DSS Inspection and testing
- SIL 3 Certification as per IEC61508
- PED 2014/68/UE
- Hyperbaric validation testing as per API 6DSS (available on request)
- Cap test as per API 6DSS (available on request)
Product Details
Spec | Detail |
---|---|
Size Range | NPS 2-48 (DN 50-1200) |
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, Socket Welded as per B16.11" |
Series | SXP |
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 SW, Socket Welded as per B16.11 |
Body design | Forged welded two-piece and three-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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