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  2. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1] [2] reduced pressure zone assemblies (RPZA), [3] or reduced pressure principle ...

  3. Backflow - Wikipedia

    en.wikipedia.org/wiki/Backflow

    Backflow is a term in plumbing for an unwanted flow of water in the reverse direction. [1] It can be a serious health risk for the contamination of potable water supplies with foul water . In the most obvious case, a toilet flush cistern and its water supply must be isolated from the toilet bowl.

  4. Backwater valve - Wikipedia

    en.wikipedia.org/wiki/Backwater_valve

    A backwater valve is a backflow prevention device used to prevent outbound water through a dwelling's drain pipes from re-entering -- "back flowing"—into a home. The valve contains a flap that allows water to exit the home, but closes to prevent the back flow into the home.

  5. Repair kit - Wikipedia

    en.wikipedia.org/wiki/Repair_kit

    The Mercedes-Benz OM604 engine has an optional repair kit to help replace seals. The 1905 Gale Model A came with a repair kit. In aerospace, kits have been developed for repairing the thermal protection tiles on the Space Shuttle and to fix space suits. [1] An electronics repair kit including different resistors. Professionals who repair and ...

  6. Blowout preventer - Wikipedia

    en.wikipedia.org/wiki/Blowout_preventer

    Blowout preventers come in a variety of styles, sizes and pressure ratings. Several individual units serving various functions are combined to compose a blowout preventer stack. Multiple blowout preventers of the same type are frequently provided for redundancy, an important factor in the effectiveness of fail-safe devices.

  7. Glossary of oilfield jargon - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_oilfield_jargon

    BOP (Blowout preventer): Pronounced "B-O-P", not "bop", is a mechanical device connected to the wellhead to control and prevent blowouts. Catwalk: Elevated platform used for sliding pipe up to the rig floor. Chainhand (also motorman): An experienced laborer capable of maintaining most parts of the rig.

  8. Alexandr Wang - Wikipedia

    en.wikipedia.org/wiki/Alexandr_Wang

    Alexandr Wang (Chinese: 汪滔; pinyin: Wāng tāo; [2] born 1997) is the founder and CEO of Scale AI, a data annotation platform that provides training data for machine learning models.

  9. Matthew Macfadyen - Wikipedia

    en.wikipedia.org/wiki/Matthew_Macfadyen

    David Matthew Macfadyen (/ m ə k ˈ f æ d i ən /; born 17 October 1974) is an English actor.Known for his performances on stage and screen, he gained prominence for his role as Mr. Darcy in Joe Wright's Pride & Prejudice (2005).

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