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double block and bleed ball valve

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Product Summary

Double block and bleed ball valve is a kind of ball valve, which can be used to replace existing traditional techniques employed by pipeline engineers to generate a double block and bleed configuration in the pipeline. A bleed valve assembly for use in a double block and bleed valve system having first and second block valves comprising a body which is disposed between the block valves which forms a chamber, a flowway having a generally smooth flowway surface defined by the body and partially defining the chamber, the body having a cavity which is in open communication with the chamber and a drain outlet in open communication with the cavity, there being disposed a valve assembly in the cavity which has a rotatable valve element which can be moved between a first open position permitting flow through the drain outlet and a second closed position preventing flow through the drain outlet, the valve assembly having a portion which partially defines the flowway surface when the valve element is in the second or closed position.

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