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Forged Trunnion Mounted Twin-Ball DBB Valve with Dual Worm Gear - China Suppliers and Factory
Product Details
SLVCN Forged Trunnion Mounted Twin-Ball DBB Ball Valve with Dual Worm Gear Operation
This high-performance valve is designed for oil & gas, refinery, petrochemical, metering station, and critical pipeline isolation applications where reliable shut-off, cavity pressure release, and leakage verification are required.
The valve integrates two independent trunnion mounted ball closures and an intermediate bleed / drain connection within one compact body. When both ball closures are closed, the cavity between the two balls can be vented, drained, or monitored through the bleed connection, allowing operators to verify isolation performance before maintenance, inspection, or process line intervention.
Space-Saving Design
Reduces installation space, connection points, and overall weight.
Reduced Operating Torque
Trunnion mounted fixed ball structure supports balls under high pressure.
Compared with a traditional assembly using two separate block valves and one bleed valve, the integrated DBB design helps reduce potential external leak paths. Dual worm gear operators provide smooth and independent manual control of both ball closures.
Soft seated and metal seated configurations are available according to medium, pressure, temperature, and leakage requirements. Body material, seat material, pressure class, end connection, bore type, bleed arrangement, operation method, and testing requirements can be customized according to project specifications.
