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ball valve |
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ball valve [′bȯl ‚valv] (mechanical engineering) A valve in which the fluid flow is regulated by a ball moving relative to a spherical socket as a result of fluid pressure and the weight of the ball. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The system also uses a unique temperature-profiled vacuum calibrator (supplied by the customer) with hot water introduced via 20 ball valves from the heated reservoir and chilled water from another 20 ball valves, allowing its temperature to be controlled separately from the cooling tanks. The standard discharge is a 2", close mounted, full port ball valve, and an optional end discharge arrangement is available. When scale is formed on the moving elements of ball valves or gate valves, the valve movement can become blocked, or the seats may become damaged, with consequent leaking through the valves. |
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