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  2. Double check valve - Wikipedia

    en.wikipedia.org/wiki/Double_check_valve

    A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. [1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

  3. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...

  4. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    The inside of an extremely large butterfly valve Duplex ball valve Three check valves in corrosion-resistant Hastelloy Stainless steel gate valve. Valves can be categorized into the following types, based on their operating mechanism: Ball valve, for on–off control without pressure drop. Ideal for quick shut-off, since a 90° turn completely ...

  5. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Valves and their types and identifications (e.g. isolation, shutoff, relief and safety valves, valve interlocks) Control inputs and outputs (sensors and final elements, interlocks) Miscellaneous - vents, drains, flanges, special fittings, sampling lines, reducers and swages; Interfaces for class changes; Computer control system

  6. Booking.com could cut jobs as part of reorganization plan - AOL

    www.aol.com/news/booking-com-parent-cut-jobs...

    The company, a unit of Booking Holdings, said in an emailed statement that it was in the early stages of the review process and no firm decision had been made. As of the end of 2023, Booking ...

  7. Mike Tyson vs. Jake Paul: Full schedule and live stream for ...

    www.aol.com/mike-tyson-vs-jake-paul-114320314.html

    After numerous delays, health concerns, and heated debate, the highly-anticipated fight between 27-year-old Jake "The Problem Child" Paul and 58-year-old "Iron" Mike Tyson is less than a week away ...

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