API 6D Through-Conduit Gate Valve
Full-bore piggable slab or expanding gate for pipeline isolation
Through-conduit gate valve for oil and gas pipelines, supplied to API 6D from qualified manufacturers. A slab or expanding gate leaves a full, piggable bore when open — the usual choice for mainline isolation, launcher and receiver valves, and block-valve stations. Soft or metal seats, stem extensions and buried-service gearboxes are arranged to the datasheet. Manufacturer test records follow API 6D.
Products are supplied to the stated API / ISO / ASME / AWWA standards from qualified manufacturers for projects in Saudi Arabia, including Dammam, Jubail, Yanbu, Riyadh, Jeddah and the Eastern Province. Certifications, monograms and listings are those of the manufacturing plant and are provided as specified in the purchase order.
Technical specifications
| Figure number | IV-6D21 |
|---|---|
| Size range | 2″ – 48″ (DN50 – DN1200) |
| Pressure rating | ASME Class 150 – 2500 |
| End connections | RF / RTJ flanged or butt-weld |
| Typical materials | Body: ASTM A216 WCB, A352 LCC, A351 CF8M, duplex (A995 4A / 5A); trim: A105, A182 F316 / F51 as specified |
| Design standards | API 6D · ASME B16.34 · ASME B16.10 |
| Certifications (per manufacturer) | API 6D design & test · Fire-safe API 6FA (as available) · ISO 15848 on request |
Key features
- Through-conduit slab or expanding gate — full piggable bore
- Soft-seated or metal-seated options
- OS&Y or non-rising stem; bevel-gear or actuator ready
- Double block and bleed capability as specified
- Shell and seat tests to API 6D
- Fire-safe API 6FA construction available where the manufacturer offers it
