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  2. Solenoid valve - Wikipedia

    en.wikipedia.org/wiki/Solenoid_valve

    The valve can use a two-port design to regulate a flow or use a three or more port design to switch flows between ports. Multiple solenoid valves can be placed together on a manifold. Solenoid valves are the most frequently used control elements in fluidics. Their tasks are to shut off, release, dose, distribute or mix fluids.

  3. Isolation valve - Wikipedia

    en.wikipedia.org/wiki/Isolation_valve

    An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes. [1] They can also be used to provide flow logic (selecting one flow path versus another), and to connect external equipment to a system. [ 2 ]

  4. Atmospheric vacuum breaker - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_vacuum_breaker

    Inside this elbow is a poppet valve that is held "up" by the water pressure found in the system, closing the air entrance to the device. If the pressure in the "upstream side" is reduced to atmospheric pressure or below, the poppet valve drops and allows air to enter the system, breaking the siphon. [1]

  5. How to keep your pipes from freezing during cold temperatures ...

    www.aol.com/keep-pipes-freezing-during-cold...

    Shut off the water supply. If your water leak detection system has already gone off or your pipes have burst, turn off the water at the main shutoff valve in the house. Make sure that everyone in ...

  6. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Pilot valve: regulates flow or pressure to other valves; Petcock, a small shut-off valve; Pinch valve, "beach ball valve": simple, single-part two-port check valve made from soft plastic and molded onto inflatable units such as beach balls, air mattresses, water wings; can be inflated by pump or by mouth

  7. Valve - Wikipedia

    en.wikipedia.org/wiki/Valve

    The shut off butterfly valve for a Francis turbine at Gordon Power Station, Tasmania Ball valve. The "seat" is the interior surface of the body which contacts the disc to form a leak-tight seal. In discs that move linearly or swing on a hinge or trunnion, the disc comes into contact with the seat only when the valve is shut.

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