Shoulong Valve
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Seamless pipeline connection minimizes leak points, ensuring reliable long-term operation with reduced maintenance.
Secure isolation and controlled cavity venting provide safe pressure relief in critical pipeline systems.
Maintains consistent sealing under high pressure and large diameters, reducing wear and extending valve life.
Low-torque operation enables smooth and precise manual control, even at full rated pressure.
Fire-safe seats, anti-static protection, and anti-blowout stem enhance safety in high-pressure and flammable environments.
Customizable body, seat, and sealing materials allow adaptation to diverse media, temperatures, and project requirements.
The Class 600 fully welded trunnion-mounted DBB ball valve with pipe extensions is designed for high-performance flow control in critical pipelines. Its fully welded body ensures zero external leakage, while the Double Block-and-Bleed (DBB) design provides secure isolation and safe cavity pressure relief.
The trunnion-mounted ball maintains stable sealing under high pressure and large diameters. Gear operation reduces torque for smooth, reliable manual control. Short-stem design suits above-ground installations, with optional extended stems for buried service.
Customizable body, seat, and sealing materials - including Carbon Steel, Stainless Steel, Alloy Steel, PEEK, and PCTFE - allow adaptation to various temperatures, pressures, and media. Compliant with API 6D and ASME B16.34, it is ideal for oil & gas, chemical & petrochemical, power generation, offshore/onshore pipelines, and other critical applications where safety, reliability, and low maintenance are essential.
| 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 |
Dimensions: Class 600 - Full Port
| NPS/DN | B1 in/mm | B2 in/mm | FW RF | FW RTJ | FF BWE | FW BWE | D in/mm | D1 in/mm | Weight |
| 2" | 1.94 | 1.94 | 11.5 | 11.63 | 11.5 | 11 | 6.5 | 6.5 | 79 |
| 3" | 2.94 | 2.94 | 14 | 14.13 | 14 | 12.5 | 8.5 | 8.5 | 154 |
| 4" | 3.94 | 3.94 | 17 | 17.13 | 17 | 14 | 10.9 | 10.9 | 254 |
Weight and dimensions for larger valve sizes up to 64" available on request.
