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  2. Diffusion pump - Wikipedia

    en.wikipedia.org/wiki/Diffusion_pump

    An oil diffusion pump is used to achieve higher vacuum (lower pressure) than is possible by use of positive displacement pumps alone. Although its use has been mainly associated within the high-vacuum range, down to 1 × 10 −9 mbar (1 × 10 −7 Pa ), diffusion pumps today can produce pressures approaching 1 × 10 −10 mbar (1 × 10 −8 Pa ...

  3. Air Squared - Wikipedia

    en.wikipedia.org/wiki/Air_Squared

    Air Squared is a vertically integrated research and development ( R&D) original equipment manufacturing ( OEM) firm headquartered in Thornton, Colorado. Its operations include the design, fabrication, and production of oil-free scroll compressors, vacuum pumps, and expanders. Organized in two divisions, Air Squared Manufacturing handles volume ...

  4. Vacuum pump - Wikipedia

    en.wikipedia.org/wiki/Vacuum_pump

    In the field of oil regeneration and re-refining, vacuum pumps create a low vacuum for oil dehydration and a high vacuum for oil purification. A vacuum may be used to power, or provide assistance to mechanical devices. In hybrid and diesel engine motor vehicles, a pump fitted on the engine (usually on the camshaft) is used to produce a vacuum.

  5. Liquid-ring pump - Wikipedia

    en.wikipedia.org/wiki/Liquid-ring_pump

    Liquid-ring pumps are typically used as vacuum pumps, but can also be used as gas compressors. The function of a liquid-ring pump is similar to a rotary vane pump, with the difference being that the vanes are a rigid part of the rotor and churn a rotating ring of liquid to form the compression-chamber seal. They are an inherently low-friction ...

  6. Vacuum ejector - Wikipedia

    en.wikipedia.org/wiki/Vacuum_Ejector

    vacuum pump. A vacuum ejector, or simply ejector 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. The fluid leaving the jet is flowing at a high velocity which due ...

  7. Fernald Feed Materials Production Center - Wikipedia

    en.wikipedia.org/wiki/Fernald_Feed_Materials...

    The Fernald Feed Materials Production Center (commonly referred to simply as Fernald or later NLO) is a Superfund site located within Crosby Township in Hamilton County, Ohio, as well as Ross Township in Butler County, Ohio, in the United States. [1] It was a uranium processing facility located near the rural town of New Baltimore, about 20 ...

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