Shoulong Valve
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Trunnion-mounted ball with dual metal seats provides reliable upstream and downstream isolation and safe cavity pressure relief.
Hardfaced metal seats ensure stable sealing performance under high temperature, high pressure, and abrasive severe service conditions.
Forged steel body with trunnion support reduces operating torque and maintains structural integrity under extreme pressure loads.
Metal seating design supports fire-safe performance and ensures reliable operation in critical oil, gas, and high-pressure applications.
This Metal Seated Double Block & Bleed (DBB) Trunnion-Mounted Ball Valve is designed for high-pressure and severe service applications where absolute isolation and operational safety are critical.
The DBB function is achieved by a single trunnion-mounted ball with two independent metal seats and a dedicated bleed cavity, providing positive upstream and downstream isolation with safe pressure relief and leakage verification.
The trunnion-mounted design ensures stable ball positioning, reduced operating torque, and reliable sealing performance under extreme pressure and temperature conditions. The metal-to-metal seating structure offers excellent resistance to high temperature, abrasion, and pressure fluctuations, making the valve suitable for severe service conditions.
