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  2. Vaillant Group - Wikipedia

    en.wikipedia.org/wiki/Vaillant_Group

    The history of the Vaillant Group dates back to 1874, when Johann Vaillant set up a master fitter's business. In 1894 Johann Vaillant patented a new "closed-system" gas-fired bathroom boiler. [3] This was the first device that made it possible to heat water hygienically, without contaminating it with combustion gases.

  3. Automatic bleeding valve - Wikipedia

    en.wikipedia.org/wiki/Automatic_bleeding_valve

    Construction is of the usual cast brass housing for plumbing parts, with a threaded connection to the pipework at the base. The top has a small outlet, usually hidden beneath a plastic dust cap. Internally there is a large hollow body, normally filled with water, and containing a float valve. The valve must always be installed vertically ...

  4. American Radiator Company - Wikipedia

    en.wikipedia.org/wiki/American_Radiator_Company

    In 1989 the Metal Box company demergered, and MB group formed; Caradon was acquired by MB group becoming MB Caradon in 1989 and the Hull boiler factory became Caradon Ideal in 1993. [24] In the 2010s the Ideal Boilers' foundry was closed with the loss of 57 jobs and outsource casting to third parties. [28] [29]