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  2. Faucet aerator - Wikipedia

    en.wikipedia.org/wiki/Faucet_aerator

    Shape the water stream coming out of the faucet spout, to produce a straight and evenly pressured stream; Conserve water and reduce energy costs; Reduce faucet noise; Increase perceived water pressure (often used in homes with low water pressure); sometimes described as a pressure regulator or flow regulator

  3. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1] [2] reduced pressure zone assemblies (RPZA), [3] or reduced pressure principle ...

  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. Pressure regulator - Wikipedia

    en.wikipedia.org/wiki/Pressure_regulator

    Pressure regulator for domestic water supply. Outlet pressure is set with the blue handwheel and shown on the vertical scale. A water pressure regulating valve limits inflow by dynamically changing the valve opening so that when less pressure is on the outside, the valve opens up fully, and too much pressure on the outside causes the valve to shut.

  6. Automatic balancing valve - Wikipedia

    en.wikipedia.org/wiki/Automatic_balancing_valve

    Electronic Pressure-independent control valves use a flow meter or a pressure drop across an orifice to provide flow data to an actuator that works to provide the correct flow down stream. These valves offer much lower pressure requirements as a pressure regulator requires a pressure within a range to achieve operation.

  7. Water hammer - Wikipedia

    en.wikipedia.org/wiki/Water_hammer

    This pressure wave can cause major problems, from noise and vibration to pipe rupture or collapse. It is possible to reduce the effects of the water hammer pulses with accumulators, expansion tanks, surge tanks, blowoff valves, and other features. The effects can be avoided by ensuring that no valves will close too quickly with significant flow ...

  8. I took a 13-hour flight from the US to New Zealand. Here are ...

    www.aol.com/news/took-13-hour-flight-us...

    The pressure to accomplish work felt more intense on a 13-hour flight that was part of a business trip. I'd feel like I wasted an entire day if I disembarked the plane without checking anything ...

  9. Ballcock - Wikipedia

    en.wikipedia.org/wiki/Ballcock

    As the tank water level drops, the float descends and actuates the fill valve. Water is fed to the tank to replenish its supply, and a smaller flow is directed into the overflow tube to refill the bowl. Once the flapper valve closes, the water flow from the fill valve continues until the tank level again reaches the fill line.

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