The Valbart VW1 is a API 6D-compliant, welded-body valve that seals off both seats at the same time and allows bleeding of the entrapped cavity pressure (double block and bleed) with the ball in the closed position.
Additional information
| Valve Size | 2" to 56" |
|---|---|
| Pressure Class Standard | ASME B16.34 |
| Pressure Class Range | Class 150, 300, 600, 900, 1500, 2500 |
| Body | 3-Piece Fully Welded |
| End Connections | Butt-Weld |
| Face-to-Face Standard | API 6D (ASME B16.10) |
| Bonnet | Standard, Extended |
| Packing | O-Ring, PTFE, Graphite, Lip Seals |
| Configuration | Trunnion Mounted Ball |
| Trim | Reduced & Full Port |
| Seat Type | Double Block & Bleed (DBB), Double Isolation & Bleed (DIB-1 & DIB-2) |
| Seating | Metal-to-Metal & Soft |
| Shut-Off Classification | API 6D as per ISO 5208 Rate A, B, D |
Features & Benefits
- Greater efficiency, safety and control enabled by pressure-absorbing bearings, seat sealing action at any rated pressure and anti-static design
- Plant and personnel protected by anti-blowout design that ensures the stem is retained by the stem cover
- Environmental compliance assured by zero-emission design
- Reduced actuation costs, as seat design minimizes the torque required to operate the valve without losing the sealing power
- Ball and stem are independent to minimize the effect of the side thrust generated by the pressure acting on the ball
- Ball is fixed and the seat rings are floating, free to move along the valve axis
- Accurate machining of stem and bonnet sealing surfaces ensures compliance with the most severe pollution-control regulations
- Valve designs are available with extended bonnets for applications in extreme temperature service
- Valbart trunnion-mounted ball valves are designed and certified Fire Safe to API 6FA, API 607, and ISO 10497
- Valves installed underground or in remote locations can be operated with an optional extended stem
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| Fire-Safe to API 6FA, API 607, ISO 10497 | |
| Design Standards | CSA Z245.15 – Steel Valves |
| API 6D – Specification for Pipeline and Piping Valves | |
| ASME B16.25 – Buttwelding Ends | |
| ASME B16.34 – Valve Flanged, Threaded, and Welding End | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2008 |
| ATEX QAN | |
| IECEX QAR |
