Shoulong Valve
1 / 1
Provides secure pipeline isolation and safe cavity pressure relief, preventing leaks and ensuring safe operation in gas transmission systems.
Maintains stable sealing under high-pressure and large-diameter conditions, extending valve life and reducing wear in gas pipelines.
Low-torque, smooth manual operation for precise control, even under full pressure, ensuring ease of use in critical gas applications.
Includes fire-safe seats, anti-static protection, and anti-blowout stem, providing enhanced safety in high-pressure, flammable gas environments.
Customizable materials, including Carbon Steel, Stainless Steel, Alloy Steel, and PCTFE, ensure compatibility with various gas media, temperatures, and project requirements.
The SLVCN Class 900 Fully Welded Trunnion-Mounted DBB Gas Ball Valve is built for high-performance, leak-free flow control in critical gas transmission pipelines. Its fully welded one-piece body ensures zero external leakage, ideal for underground, subsea, and high-pressure environments. The Double Block-and-Bleed (DBB) design ensures secure isolation and safe cavity pressure relief, protecting system integrity.
The trunnion-mounted ball offers stable sealing under high pressure and large diameters. The gear-operated design provides low-torque, smooth manual operation, while the short-stem design suits above-ground installations, with optional extended stems for buried service.
| 1 | Welding steel pipe | 10 | Seat | 19 | Seal Ring | 28 | Nut | 37 | Four Open Loop |
| 2 | Seamless steel tube | 11 | Seat | 20 | Extension Stem | 29 | Bolt | 38 | Sealing Ring |
| 3 | Right Body | 12 | Ball | 21 | Bearing | 30 | Packing | 39 | Thrust Washer |
| 4 | Spring | 13 | Trunnion Support | 22 | Extension Support | 31 | Thrust Washer | 40 | Stem Bearing |
| 5 | "O"-Ring | 14 | Worm-Gear | 23 | Pin | 32 | "O"-Ring | 41 | Stem |
Dimensions: Class 900 - Full Port
| Size (NPS/DN) | B1 (in/mm) | B2 (in/mm) | RF Face to Face | Weight (lb/kg) |
|---|---|---|---|---|
| 2" / 50 | 1.94 / 49 | 1.94 / 49 | 14.5 / 368 | 137 / 62 |
| 3" / 80 | 2.94 / 74 | 2.94 / 74 | 15 / 381 | 205 / 93 |
| 4" / 100 | 3.94 / 100 | 3.94 / 100 | 18 / 457 | 337 / 153 |
Note: Weight and dimensions for larger valve sizes up to 56" available on request.
