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  2. Pressure-balanced valve - Wikipedia

    en.wikipedia.org/wiki/Pressure-balanced_valve

    The pressure-balanced shower valve compensates for changes in water pressure. It has a diaphragm or piston inside that reacts to relative changes in either hot or cold water pressure to maintain balanced pressure. As water pressure drops on one supply line, the valve reduces the pressure in the other supply line to match.

  3. Pressure switch - Wikipedia

    en.wikipedia.org/wiki/Pressure_switch

    Uses of pneumatic pressure switches include: Switch a household well water pump automatically when water is drawn from the pressure tank. Switching off an electrically driven gas compressor when a set pressure is achieved in the reservoir; Switching off a gas compressor, whenever there is no feed in the suction stage. in-cell charge control in ...

  4. Shower-curtain effect - Wikipedia

    en.wikipedia.org/wiki/Shower-curtain_effect

    The most popular explanation given for the shower-curtain effect is Bernoulli's principle. [1] Bernoulli's principle states that an increase in velocity results in a decrease in pressure. This theory presumes that the water flowing out of a shower head causes the air through which the water moves to start flowing in the same direction as the ...

  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. Bathtub curve - Wikipedia

    en.wikipedia.org/wiki/Bathtub_curve

    If products are retired early or have decreased usage near their end of life, the product may show fewer failures per unit calendar time (but not per unit use time) than the bathtub curve predicts. In reliability engineering, the cumulative distribution function corresponding to a bathtub curve may be analysed using a Weibull chart [ 1 ] or in ...

  7. Thermostatic mixing valve - Wikipedia

    en.wikipedia.org/wiki/Thermostatic_mixing_valve

    WW-Zulauf = Warmwasser-Zulauf = Hot water input KW-Zulauf = Kaltwasser-Zulauf = Cold water input Temperaturregler =Temperature regulator Abgang = Outlet Mengeneinstellung = Volume control. A thermostatic mixing valve (TMV) is a valve that blends hot water with cold water to ensure constant, safe shower and bath outlet temperatures to prevent ...

  8. Your car's low tire pressure light may come on this week ...

    www.aol.com/cars-low-tire-pressure-light...

    In the fall, there can be wide swings between afternoon high temperatures in, say, the 70s, and nightly low temperatures in the 20s and 30s − a large enough drop to make the TPMS think there's ...

  9. Friction loss - Wikipedia

    en.wikipedia.org/wiki/Friction_loss

    The difference in the character of the flow from the case of water in a pipe stems from the differing Reynolds number Re and the roughness of the duct. The friction loss is customarily given as pressure loss for a given duct length, Δp / L, in units of (US) inches of water for 100 feet or (SI) kg / m 2 / s 2.