Metal seated gate valve
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Metal seated gate valve
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The Mechanical Integrity of Metal-to-Metal Contact
When fluid conditions involve high temperatures, abrasive slurries, or corrosive chemicals, resilient (rubber) seals often reach their physical limits. Veyron Valve’s Metal Seated Gate Valve is specifically engineered to thrive where elastomers fail. Utilizing a precision-machined metal-to-metal interface, these valves rely on mechanical force and surface finish rather than material elasticity to achieve a reliable seal. This makes them the primary choice for non-potable water, steam, and industrial process lines where durability is the only acceptable metric.
Advanced Tribology: Seat Ring Precision
The "Tightness" of our metal-seated series is a result of advanced metallurgical and machining processes:
- Interference Fit Seat Rings: Unlike lower-grade versions where rings are simply screwed in, Veyron’s seat rings are Interference-Fitted (Pressed) into the body and then pinned or welded. This ensures they remain stable under extreme thermal cycling and prevents the "leakage behind the ring" that often plagues industrial installations.
- Scraping Action: As the metallic wedge descends, the leading edge acts as a mechanical scraper. It physically displaces debris, scale, and sediments from the seating face, ensuring a clean contact area.
- Galling Resistance: By utilizing dissimilar hardness levels between the wedge and the body seats (e.g., Stainless Steel vs. Bronze or Stellite), we prevent "Galling"—the cold-welding effect that occurs when two identical metals are pressed together under high torque.
Technical Specifications
| Feature | Professional Specification |
|---|---|
| Standardization | ISO 5996 / ASME B16.34 / BS 5163 Type B |
| Trim Material | Stainless Steel (SS304/316) or Bronze (LG2) |
| Seat Lapping | Mirror Finish (Mechanical Lapping) |
| Body Material | Cast Steel (WCB) or Ductile Iron (GGG50) |
| Stem Construction | OS&Y (Outside Screw & Yoke) / NRS |
| Leakage Class | EN 12266-1 Rate B or C |
Field Reliability: Handling High-Velocity Solids
Veyron Valve recognizes that in mining and wastewater applications, velocity is the enemy of seals. Our Guided Wedge Geometry ensures that the wedge is supported throughout its full travel, preventing it from "vibrating" or "fluttering" against the seats in high-flow conditions. The result is a robust isolation component that maintains its sealing torque and structural integrity over thousands of cycles in the world’s most demanding fluid networks.
| Place of origin | Product name | material | Port size | face to face | Design standard | flanged drilling | Inspection | Working pressure | Application | guarantee period |
| Veyron Valve,Tianjin,China | Ball type check valve | DI body/DI+EPDM ball/DI bonnet/EPDM gasket | DN50-DN300 | DIN3202 F6 | DIN3202 F6 | DIN2501 ,EN1092-2 | DIN3230,EN12266-1 | low and medium pressure | water | 18 month |
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Veyron Valve (Tianjin) Co., Ltd.
Tel：+86 13821711216
Wechat/whatsapp：+86 18822206187
E-mail：anna@veyronvalve.com
Address：No.30,Xiaozhan Industrial park,Jinnan District,Tianjin,China
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