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  2. Valve float - Wikipedia

    en.wikipedia.org/wiki/Valve_float

    Valve float can also be prevented by using lighter valvetrain components. Titanium valves, retainers, and pushrods are commonly used for this purpose. Undercut valves can both increase flow and decrease weight. Also, by using more than the traditional two valves per cylinder, smaller and lighter valves can be used.

  3. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    Tilting-disc inconel check valve Check valve symbol on piping and instrumentation diagrams.The arrow shows the flow direction. Vertical lift 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.

  4. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Valves can be categorized also based on their function: Check valve or non-return valve, allows the fluid to pass in one direction only; Flow control valve, to maintain and control a variable flow rate through the valve; Poppet valve, commonly used in piston engines to regulate the fuel mixture intake and exhaust; Pressure-balanced valve

  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. File:Concentric Float Valve.svg - Wikipedia

    en.wikipedia.org/wiki/File:Concentric_Float...

    English: The Concentric Float valve opens when the fluid level is low, allowing more fluid to eneter (Figure 1). When the fluid level returns to the full level, the valve is shut (Figure 2). When the fluid level returns to the full level, the valve is shut (Figure 2).

  7. Feast Your Eyes on the History of the Macy's ... - AOL

    www.aol.com/lifestyle/feast-eyes-history-macys...

    Balloon ransom. The balloons used to be released intentionally post-parade, with specific valves even being introduced in 1929 so they could float for days before landing.

  8. File:Check Valve.svg - Wikipedia

    en.wikipedia.org/wiki/File:Check_Valve.svg

    The original can be viewed here: Check valve.jpg: File:Check valve.jpg. Modifications made by Gregors. I, the copyright holder of this work, hereby publish it under ...

  9. Float chamber - Wikipedia

    en.wikipedia.org/wiki/Float_chamber

    Float chamber (left) of an updraught carburettor, showing the float (4) and valve (5). A float chamber is a device for automatically regulating the supply of a liquid to a system. It is most typically found in the carburettor of an internal combustion engine , where it automatically meters the fuel supply to the engine.