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  2. Siphon - Wikipedia

    en.wikipedia.org/wiki/Siphon

    An anti-siphon valve is also required here to prevent pressure drops in the water supply line from suctioning water out of the toilet tank (which may contain additives such as "toilet blue" [53]) and contaminating the water system. Anti-siphon valves function as a one-direction check valve. Anti-siphon valves are also used medically.

  3. Atmospheric vacuum breaker - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_vacuum_breaker

    It is usually constructed of brass and resembles a 90-degree elbow with a hood on its top to allow air to enter the water system if a siphon attempts to form. 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 ...

  4. Backflow prevention device - Wikipedia

    en.wikipedia.org/wiki/Backflow_prevention_device

    Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

  5. Vacuum breaker - Wikipedia

    en.wikipedia.org/wiki/Vacuum_breaker

    A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock valve or toilet or urinal flush valve, in which application they can prevent hose or drainage water from back-siphoning into the public drinking water system.

  6. Backflow - Wikipedia

    en.wikipedia.org/wiki/Backflow

    Backflow occurs for one of two reasons, either back pressure or back siphonage. [1]Back pressure is the result of a higher pressure in the system than in its supply, i.e. the system pressure has been increased by some means.

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  8. Vacuum valve - Wikipedia

    en.wikipedia.org/wiki/Vacuum_valve

    Vacuum valve may refer to: Trickle valve, a type of airlock; Vacuum breaker, an anti-siphon valve; Vacuum delay valve, an automobile component; Vacuum tube, an electron tube or thermionic valve; Vacuum interrupter, an electrical device acting similar to a circuit breaker, used in higher voltage applications

  9. Got Norovirus? Doctors Say This Is Exactly What You Should Now

    www.aol.com/got-norovirus-doctors-exactly-now...

    The BRAT diet (bananas, rice, applesauce and toast) can work well.Try a little food and see how you feel, then eat a little more as you can tolerate it. “Avoid aggravating GI symptoms by not ...

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    related to: anti siphon valve meaning in english