The Valbart CEGV compact expanding gate valve is a fabricated body-expanding gate valve manufactured andtested in accordance with API 6D, latest edition. The compact expanding gate design features a full-bore diameter, with a compact, non-through conduit design providing a compact and lightweight valve package. Valbart expanding gate valves are engineered to achieve tight shutoff at high and/or low pressures in liquid or gas services. The expanding gate and segment design provides a high-integrity seal for a variety of critical applications, while affording lower operating friction.
Additional information
| Valve Size | 12" to 36" |
|---|---|
| Pressure Class Standard | ASME B16.34 |
| Pressure Class Range | Class 150, 300 |
| Body | Fabricated with Engineered Ribs |
| End Connections | Integral Flange |
| Face-to-Face Standard | API 6D, ASME B16.10 |
| Bonnet | Standard Bolted |
| Packing | PTFE Chevron with Graphite, Fugitive Emission, Live-Loaded, Full Graphite |
| Configuration | Non-Through Conduit Slab |
| Trim | Full Bore to API 6D |
| 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, D |
Features & Benefits
- The expanding gate and segment design of the CEGV is designed to push against the seats for positive sealing, even at low pipeline pressures
- Mechanical action of the gate expansion does not require pipeline pressure to assist in the sealing, providing a positive seal at low pipeline pressures
- Wedging action of the gate/segment multiplies the loading against the seats, creating high seating forces that are unaffected by higher pipeline pressures
- On opening stroke from the closed position, the control arm engages the guide plate and pivots, causing the gate and segment to un-wedge and contract inward, away from the seats
- CEGV engineered bore sealing mechanism utilizes a soft seal enclosed within a metal-to-metal seat providing positive uncompromising isolation for severe/heavy-duty
- The wall sections and ribs have been engineered using state-of-the-art finite element analysis for optimizing strength over weight and ensuring material is placed where needed
- compact installation with associated weight savings over the through conduit design, where there are no requirements for pipeline pigging
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| Fire-Safe to API 6FA, API 607 | |
| Design Standards | API 6D – Specification for Pipeline and Piping Valves |
| ASME B16.5 – Pipe Flanges & Flanged Fittings | |
| ASME B16.47 – Large Diameter Steel Flanges | |
| ASME B16.10 – Face to Face & End Dimenions of Valves | |
| ASME B16.34 – Valve Flanged, Threaded, and Welding End | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2008 |
| ATEX QAN | |
| IECEX QAR |
