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  2. Aquastat - Wikipedia

    en.wikipedia.org/wiki/Aquastat

    An aquastat is a device used in hydronic heating systems for controlling water temperature. [ 1 ] [ 2 ] To prevent the boiler from firing too frequently, aquastats have a high limit temperature and a low limit.

  3. Circulator pump - Wikipedia

    en.wikipedia.org/wiki/Circulator_pump

    The traditional hot water recirculation system uses the existing cold water line as return line from the point of use located farthest from the hot water tank back to the hot water tank. The first of two system types has a pump mounted at the hot water heater while a "normally open" thermostatic control valve gets installed at the farthest ...

  4. Forced circulation boiler - Wikipedia

    en.wikipedia.org/wiki/Forced_circulation_boiler

    The secondary pump takes the feed water going to the boiler and raises the pressure of the water going in. In a natural circulation boilers, the circulation of water is dependent on the differential pressures caused by the change of density in the water as it is heated. That is to say that as the water is heated and starts turning to steam, the ...

  5. Water pumping - Wikipedia

    en.wikipedia.org/wiki/Water_pumping

    Due to the rotation, water is then picked up by the tube and pumped upwards in the hose. The coil pump, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in Asia. [1] The coil pump was built as an alternative to the Archimedean screw. Unlike the Archimedean screw ...

  6. Circulating water plant - Wikipedia

    en.wikipedia.org/wiki/Circulating_Water_Plant

    A circulating water plant or circulating water system is an arrangement of flow of water in fossil-fuel power station, chemical plants and in oil refineries. The system is required because various industrial process plants uses heat exchanger , and also for active fire protection measures.

  7. Does LA really want rain? Why that could ignite a ... - AOL

    www.aol.com/news/toxic-fallout-la-wildfires...

    Khonsari, the surf shop founder, said she's had to cancel hundreds of lessons already, keeping her instructors safely on shore so they don't get eye infections or worse from contaminated water.