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  2. 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]

  3. Vacuum sewer - Wikipedia

    en.wikipedia.org/wiki/Vacuum_sewer

    Vacuum technology is based on differential air pressure. Rotary vane vacuum pumps generate an operation pressure of -0.4 to -0.6 bar at the vacuum station, which is also the only element of the vacuum sewerage system that must be supplied with electricity. Interface valves are installed inside the collection chambers. They work pneumatically.

  4. Vacuum ejector - Wikipedia

    en.wikipedia.org/wiki/Vacuum_Ejector

    A vacuum ejector, or simply ejector, or aspirator, is a type of vacuum pump, which produces vacuum by means of the Venturi effect.. In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area.

  5. A Guide to the Most Common Vacuum Attachments (and What ... - AOL

    www.aol.com/lifestyle/guide-most-common-vacuum...

    Get the most out of your vacuum cleaner by learning how each of its gadgets can be used.

  6. Materials for use in vacuum - Wikipedia

    en.wikipedia.org/wiki/Materials_for_use_in_vacuum

    The most common sources of trouble (out-gassing) in vacuum systems are: Cadmium, often present in the form of cadmium plating, or in some soldering and brazing alloys; Zinc, problematic for high vacuum and higher temperatures, present in some construction alloys, e.g. brass and some brazing alloys.

  7. Roughing pump - Wikipedia

    en.wikipedia.org/wiki/Roughing_pump

    The term "roughing pump" derives from the vacuum range it works in, "rough vacuum", above 1x10 −3 torr (0.1 Pa). Pumps that operate in the high vacuum ranges typically don't operate, or only operate inefficiently, at atmospheric pressures , whereas pumps that work efficiently at atmospheric pressure usually cannot produce a vacuum lower than ...

  8. People Who Have the Cleanest Homes Always Vacuum First - AOL

    www.aol.com/news/people-cleanest-homes-always...

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  9. Category:Pumps - Wikipedia

    en.wikipedia.org/wiki/Category:Pumps

    Vacuum pumps (18 P) W. Windpumps (3 C, 3 P) Pages in category "Pumps" The following 127 pages are in this category, out of 127 total. This list may not reflect recent ...