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  2. Rheem Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Rheem_Manufacturing_Company

    Rheem Manufacturing Company is a privately held manufacturer who produces residential and commercial water heaters, boilers, heating, ventilating and air conditioning (HVAC) equipment. The company also produces and sells products under the Ruud brand name.

  3. January 2025 Richmond water crisis - Wikipedia

    en.wikipedia.org/wiki/January_2025_Richmond...

    The issues started on the morning of Monday, January 6, and were mostly resolved by Saturday, January 11. The localities' water systems are interconnected, meaning that problems in Richmond City led to problems across the region. Richmond was the most impacted, followed by Henrico to the immediate north.

  4. Pressure switch - Wikipedia

    en.wikipedia.org/wiki/Pressure_switch

    The contacts of the pressure switch may be rated a few tenths of an ampere to around 15 amperes, with smaller ratings found on more sensitive switches. Often a pressure switch will operate a relay or other control device, but some types can directly control small electric motors or other loads.

  5. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible.A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator.

  6. Relief valve - Wikipedia

    en.wikipedia.org/wiki/Relief_valve

    A relief valve DN25 on cooling water pipe from heat exchanger Schematic diagram of a conventional spring-loaded pressure relief valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise build up and create a process upset, instrument or equipment failure, explosion, or fire.

  7. Pressure regulator - Wikipedia

    en.wikipedia.org/wiki/Pressure_regulator

    A typical nominal regulated gauge pressure from a medical oxygen regulator is 3.4 bars (50 psi), for an absolute pressure of approximately 4.4 bar and a pressure ratio of about 4.4 without back pressure, so they will have choked flow in the metering orifices for a downstream (outlet) pressure of up to about 2.3 bar absolute.

  8. List of Martha Speaks episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Martha_Speaks_episodes

    This is the list of episodes for the animated television series Martha Speaks.The series aired on PBS Kids from September 1, 2008 to November 18, 2014. Each episode focuses on mainly synonyms and vocabulary, featuring an underlying theme illustrated with a wide range of keywords, but can occasionally focus on introducing children to different science and other learning concepts, such as the ...

  9. Duncanville (TV series) - Wikipedia

    en.wikipedia.org/wiki/Duncanville_(TV_series)

    Duncanville centers on the life of Duncan Harris, an average 15-year-old boy who is always one step away from making a bad decision. Duncan lives with his family. His family includes his mother, Annie, a meter maid, who dreams of being a detective someday and always has to watch Duncan to keep him from screwing up; his father, Jack, who tries to be a better father figure to Duncan than his own ...