Shoulong Valve
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Unequal flange sizes on inlet and outlet allow smooth diameter transition without additional reducers.
Two independent trunnion-mounted balls create double isolation, with a bleed cavity for pressure release and sealing verification.
Integrated body design minimizes face-to-face length, ideal for space-limited piping and skid systems.
Enables safe depressurization, leakage monitoring, and maintenance verification during operation.
RF or RTJ flanges ensure secure sealing performance under high-pressure and critical service conditions.
Clear visual indication of valve status and safer manual operation for upstream and downstream isolation.
Reducing Flanged Twin Ball Double Block & Bleed (DBB) Valve provides a single engineered solution that combines smooth pipeline diameter transition with verified double isolation. This compact design integrates reducing flanged ends into a true Twin Ball DBB configuration, eliminating the need for separate reducers and multiple valves.
The twin trunnion-mounted balls deliver reliable upstream and downstream isolation, while the central bleed port enables safe pressure release and on-site sealing verification, ensuring both operational safety and maintenance convenience.
Ideal for demanding Oil & Gas, Chemical, and skid-mounted process applications, this valve is engineered-to-order. Size, pressure class, materials, and seat options can be customized to meet specific project requirements, guaranteeing long-term reliability and performance.
