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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

   Edwards Ltd is a British multinational vacuum pump and exhaust gas management systems manufacturer. Its headquarters are in Burgess Hill , UK, and has been part of the Atlas Copco Group since 2014. [ 12 ] [ 13 ] [ 1 ] Edwards holds 1,700 patents , including for dry (oil-free) vacuum pumps , and produces equipment used for manufacturing ...

4. Kirloskar Group - Wikipedia

   en.wikipedia.org/wiki/Kirloskar_Group

   Kirloskar Brothers Limited Kirloskarvadi; Kirloskar Brothers Limited Kirloskarvadi-Palus, SPP Pumps (UK), Braybar Pumps Ltd., (South Africa) and Kolhapur Steels Ltd. [3] [4] Kirloskar Brothers produces Centrifugal pumps from 0.1 kW to 26 mega-watts single pumps, pumping liquids in excess of 35,000 liters/sec thus producing some of the largest pumps by size and horsepower.

5. 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.

6. Vacuum pump - Wikipedia

   en.wikipedia.org/wiki/Vacuum_pump

   The Roots blower is one example of a vacuum pump. A vacuum pump is a type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. [1]

7. Pump - Wikipedia

   en.wikipedia.org/wiki/Pump

   Liquid ring pumps have a dedicated intake for the priming liquid separate from the intake of the fluid being pumped, as the fluid being pumped may be a gas or mix of gas, liquid, and solids. For these pumps the priming liquid intake must be supplied continuously (either by gravity or pressure), however the intake for the fluid being pumped is ...