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Single-stage vacuum pumps typically produce vacuum to 35 torr (mm Hg) or 47 millibars (4.7 kPa), and two-stage pumps can produce vacuum to 25 torr, assuming air is being pumped and the ring-liquid is water at 15 °C (59 °F) or less. Dry air and 15 °C sealant-water temperature is the standard performance basis, which most manufacturers use for ...
For such pumps, the position of the pump and intake tubing should be lower than the suction point so it is primed by gravity; otherwise the pump should be manually filled with liquid or a secondary pump should be used until all air is removed from the suction line and the pump casing. Liquid ring pumps have a dedicated intake for the priming ...
Lewis H. Nash (c. 1852 – November 11, 1923) was an American engineer who invented the liquid-ring-vacuum pump, and was the holder of over a hundred United States patents for pumps, engines, and other equipment.
This page was last edited on 24 January 2016, at 06:13 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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Liquid-ring pump – Type of rotating positive-displacement pump. Rotary-screw compressor – Gas compressor using a rotary positive-displacement mechanism; Rotary vane pump – Positive-displacement pump consisting of vanes mounted to a rotor that rotates inside a cavity
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