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Double Block and Bleed Ball Valve
Автор: Wolseley Industrial Canada Inc.
Загружено: 2019-05-02
Просмотров: 21516
Описание:
Operation of API double block and bleed ball valve (self-relieving / single piston effect seats). This valve has the ability vent the center cavity pressure while in-line to confirm seat integrity. In a cavity over-pressure scenario, the seats automatically relieve into the pipe-line.
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