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The introduction of DBB Ball Valve

We Tipvalve can supply ball valves with Double block and bleed construction (DBB), which is suitable for most application field of ball valve with two valve seat faces. When the valve is closed, it can bleed off the pressure in body cavity between two seat faces and produced simultaneously sealing function of the pressure from both ends of the valve. If only one side is under stress, the valve does not have effective double isolation performance.
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