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  2. North American Fire Hose Coupler Incompatibilities - Wikipedia

    en.wikipedia.org/wiki/North_American_Fire_Hose...

    Fire Department Supply and Linen Hose Section of the War Industries Board recommended that for the duration of the war "hydrants, hose valves, hose couplings, nipples, and nozzles 1 + 1 ⁄ 4-inch to 2-inch, inclusive, to be iron pipe thread for new work, hose gauge or special threads only to be used for replacement or extension of existing ...

  3. Rowenta - Wikipedia

    en.wikipedia.org/wiki/Rowenta

    Rowenta is a German manufacturer of small household appliances. Since 1988, it has been part of the global French Groupe SEB. Since 1988, it has been part of the global French Groupe SEB. The German subsidiary is Rowenta Werke GmbH in Erbach in the Odenwald district in Hesse.

  4. Porosity sealing - Wikipedia

    en.wikipedia.org/wiki/Porosity_sealing

    This is the main reason why vacuum impregnation is used on any material-die cast, powder metal, plastic, wire harnesses. Vacuum impregnation prevents fluids or gases from leaking by sealing the porosity and leak paths. If the leak paths are not sealed, then fluids or gases may leak from the part.

  5. Materials for use in vacuum - Wikipedia

    en.wikipedia.org/wiki/Materials_for_use_in_vacuum

    PVC, usually in the form of wire insulation (also a source of leaks) Various residues, e.g. flux from soldering and brazing, and lubricants from machining making thorough cleaning imperative. Getting the outgassable residues from tight crevices can be challenging; a good mechanical design that avoids such features can help.

  6. Hot-filament ionization gauge - Wikipedia

    en.wikipedia.org/wiki/Hot-filament_ionization_gauge

    The most common ion gauge is the hot-cathode Bayard–Alpert gauge, with a small collector inside the grid. [1] A glass envelope with an opening to the vacuum can surround the electrodes, but usually the nude gauge is inserted in the vacuum chamber directly, the pins being fed through a ceramic plate in the wall of the chamber. Hot-cathode ...

  7. List of vacuum tubes - Wikipedia

    en.wikipedia.org/wiki/List_of_vacuum_tubes

    This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes.Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics.

  8. Fugitive emission - Wikipedia

    en.wikipedia.org/wiki/Fugitive_emission

    A detailed inventory of greenhouse gas emissions from upstream oil and gas activities in Canada for the year 2000 estimated that fugitive equipment leaks had a global warming potential equivalent to the release of 17 million metric tonnes of carbon dioxide, or 12 percent of all greenhouse gases emitted by the sector, [9] while another report put fugitive emissions at 5.2% of world greenhouse ...

  9. Vacuum chamber - Wikipedia

    en.wikipedia.org/wiki/Vacuum_chamber

    A vacuum chamber is a rigid enclosure from which air and other gases are removed by a vacuum pump. This results in a low- pressure environment within the chamber, commonly referred to as a vacuum . A vacuum environment allows researchers to conduct physical experiments or to test mechanical devices which must operate in outer space (for example ...