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2. Liquid-ring pump - Wikipedia

   en.wikipedia.org/wiki/Liquid-ring_pump

   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 ...

3. Edwards Vacuum - Wikipedia

   en.wikipedia.org/wiki/Edwards_Vacuum

   It also purchased HHV Pumps Pvt Ltd, a designer and manufacturer of vacuum pumps located in Bengalaru, India, for £10.9 million. Atlas Copco also agreed to purchase the assets of Chinese, liquid ring vacuum pump manufacturer Shandong Jinggong Pump Co Ltd, to join the Edwards vacuum pump business. [41]

4. Lewis H. Nash - Wikipedia

   en.wikipedia.org/wiki/Lewis_H._Nash

   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.

5. Category:Pumps - Wikipedia

   en.wikipedia.org/wiki/Category:Pumps

   Liquid-piston pumps (1 C, 2 P) M. Pump manufacturers (58 P) Medical pumps (22 P) V. Vacuum pumps (18 P) W. ... Vacuum pump; Variable displacement pump;

6. Pump - Wikipedia

   en.wikipedia.org/wiki/Pump

   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 ...

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