Leak testing is regularly employed in production and assembly plants on most pressure-containing vessels because it ensures product quality and integrity. The valve used in testing should be reliably leak-proof itself. If it is not, testing efforts are a waste of time. That is why Ross Controls, Troy, Mich., developed its high-flow, bubble-tight Dale Series LT, CX and LX valves and manifolds. They feature a poppet design and high sealing capabilities....
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