Fully Welded Gate Valve for Pipeline Isolation
Fully welded gate valve for reliable on-off isolation in oil, gas, water and compatible industrial pipeline services.
| Size Range | DN50–DN1200 (NPS 2″–48″), larger sizes available on request. |
|---|---|
| Pressure Rating | PN16–PN160 / ASME Class 150–900 |
| Body Material | WCB, LCB, LCC, CF8, CF8M, CF3M, or project-specified alloys |
| Connection Type | Flanged (shown configuration) |
| Design Standard | API 6D, ISO 14313, ASME B16.34, GB/T 19672; face-to-face dimensions per ASME B16.10 |
| Testing | API 598 or project-specified inspection and testing |
| Operation | Gear-operated (shown configuration) |
Frequently Asked Questions
Provide the line size, pressure class, end connection, medium, temperature and applicable project standard. These details determine the correct body, trim and sealing configuration.
Typical applications include long-distance oil and gas pipelines, buried lines, transmission systems and other demanding isolation duties. Final suitability depends on the approved design and operating conditions.
Carbon steel, low-temperature steel, stainless steel and project-specified alloy grades may be supplied. Material selection depends on pressure, temperature, medium, corrosion allowance and project requirements.
Butt-weld and flanged end connections may be supplied. Final end preparation, dimensions and connection standard are confirmed on the approved drawing.
Provide DN/NPS, pressure class, end connection, body and trim materials, medium, temperature, operation, testing, inspection and documentation requirements.
Product Overview
fully welded gate valves are compact isolation valves used in refinery, chemical, power and industrial piping. The applicable standard covers configuration-specific requirements, so valve type, size, rating, bonnet joint, bore and end connection must be confirmed together.
Body material, weld procedure, pressure-temperature rating, trim, packing, inspection and test acceptance must match the approved project datasheet.
Gate valves are intended for fully open or fully closed service. Bore, face-to-face dimensions, flange drilling and actuator arrangement should be confirmed on the certified drawing before manufacture.
- Project-Specific Design: Configuration reviewed against the specified valve and piping standards
- Welded Body Construction: Selected for long-distance pipeline and demanding industrial services
- Multiple End Connections: Flanged, threaded and project-specified connection options
- Testing and Records: API 598 or project-specific inspection and documentation
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