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  2. Pressure-balanced valve - Wikipedia

    en.wikipedia.org/wiki/Pressure-balanced_valve

    Conversely, if someone opens a hot water faucet elsewhere, the relatively higher pressure in the cold water supply line will cause the shower temperature to drop suddenly. This is described in US patent 3674048. [1] The pressure-balanced shower valve compensates for changes in water pressure.

  3. Hydronic balancing - Wikipedia

    en.wikipedia.org/wiki/Hydronic_balancing

    There are various balancing methods, but all involve measuring differential pressures and adjusting them to the correct value by calculating the flow which each one represents. Differential pressure controllers are usually membrane- or spring-driven valves that control the differential pressures in the installation. This simplifies balancing ...

  4. Thermostatic mixing valve - Wikipedia

    en.wikipedia.org/wiki/Thermostatic_mixing_valve

    The storage of water at high temperature removes one possible breeding ground for Legionella; the use of a thermostat, rather than a static mixing valve, provides increased safety against scalding, and increased user comfort, because the hot-water temperature remains constant. [1] Many TMVs use a wax thermostat for regulation. They also shut ...

  5. Surge control - Wikipedia

    en.wikipedia.org/wiki/Surge_control

    Surge control products have been used in many industries to protect the maximum working pressure of hydraulic system for decades. Typical applications for surge relief equipment is in pipelines at pump stations, receiving manifolds at storage facilities, back pressure control, marine loading/off loading, site specific applications where pressure surges are generated by the automation system ...

  6. Police illegally sell restricted weapons, supplying crime

    www.aol.com/police-illegally-sell-restricted...

    Adair, Iowa, had a population of 794. So, it seemed suspicious when its three-person police department asked regulators to buy 90 machine guns, including an M134 Gatling-style minigun capable of ...

  7. Whoopi Goldberg Refuses to Say Trump’s Name on ‘The View ...

    www.aol.com/whoopi-goldberg-refuses-trump-name...

    “The View” hosts — Whoopi Goldberg, Sara Haines, Sunny Hostin, Ana Navarro, Joy Behar and Alyssa Farah Griffin — came together on the Nov. 6 episode of the ABC talk show to react to Donald ...

  8. Zone valve - Wikipedia

    en.wikipedia.org/wiki/Zone_valve

    Removal of electrical power re-closes the valve. This style of zone valve operates with a perfectly ordinary SPST thermostat. For vacuum- or pneumatically operated zone valves, the thermostat usually switches the pressure or vacuum on or off, causing a spring-loaded rubber diaphragm or ball valve to move and actuate the valve. [2]

  9. What we know about the investigation into UnitedHealthcare ...

    www.aol.com/news/know-suspect-unitedhealthcare...

    What we know about the suspect in CEO shooting. Mangione was charged with murder Monday night, five days after 50-year-old Thompson was shot multiple times outside the Hilton Midtown hotel on ...