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  2. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    Swing check valve opening and closing. A swing check valve (or tilting disc check valve) is a check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the centerline ...

  3. Velan Studios - Wikipedia

    en.wikipedia.org/wiki/Velan_Studios

    Velan Studios was founded in November 2016 by Guha Bala and Karthik Bala. The Bala brothers previously founded Vicarious Visions in 1991 and left the company in April 2016. [2] According to the founders, the studio aimed to develop "breakthrough experimental games", [3] and the term "velan" stands for "spear bearer" in Tamil.

  4. Valve - Wikipedia

    en.wikipedia.org/wiki/Valve

    These water valves are operated by rotary handles. A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In ...

  5. 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.

  6. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.

  7. Duckbill valve - Wikipedia

    en.wikipedia.org/wiki/Duckbill_valve

    Duckbill valves attached to the hood and shoulders of a Soviet "GP" professional dry suit. Also known as a spear valve or flutter valve, this automatic device serves as a gas exhaust valve on the inside of some twin-hose diving regulators and as an excess gas release valve on the outside of certain mid-twentieth-century dry diving suits.

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