HongJia Ball Valve – How HongJiavalve Engineers a ..

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HongJia Ball Valve – How HongJiavalve Engineers a Two-Piece Body That Stays Tight Under Negative Pressure | #ball valve

HongJia Ball Valve – How HongJiavalve Engineers a Two-Piece Body That Stays Tight Under Negative Pressure

A ball valve in vacuum service must seal against outside air trying to enter. Stem packing and body joints become potential leak paths under negative pressure. Does your valve pass the vacuum test?

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