Sourced and supplied across Saudi Arabia
Gate valves are isolation-only valves: fully open or fully closed, never throttled, because a partially open gate suffers seat erosion and disc vibration. They give a straight-through flow path with minimal pressure drop, which is why they remain standard on long pipeline runs and utility headers. The bonnet and stem arrangement matters as much as the body — rising stem gives a visible position indication, while a bolted bonnet is required where the valve must be maintainable in place.
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| Nominal size | NPS or DN |
|---|---|
| Pressure class | ASME 150 through 2500, or API 5000 for wellhead duty |
| Body and bonnet material | WCB, LCC for low temperature, CF8M, F51 duplex |
| Trim material | 13Cr, F6a, 316, or hardfaced Stellite |
| Wedge type | Solid wedge, flexible wedge, or split wedge |
| Stem | Rising stem OS and Y, or non-rising stem |
| Bonnet | Bolted, pressure seal, or welded |
| End connection | Flanged RF or RTJ, butt weld, threaded |
| Operation | Handwheel, gear, or actuated |
| Sour service | State if NACE MR0175 applies |
| Service and temperature | Medium, operating and design temperature |
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