Surface-mounting mixing valve

Abstract

A valve assembly adapted for connection to separate hot- and cold-water supply pipes has a core centered on an axis and formed with a pair of input passages having output ends and diametrally oppositely opening input ends and with an output passage having an output end and an input end and respective substantially identical input fittings formed with respective fitting passages and fitted diametrally oppositely to the core with the fitting passages opening into the input ends of the input passages. Respective connections carried on the input fittings communicate with the respective fitting passages. These connections are connected to the respective hot- and cold-water supply pipes. At least one valve is fixed in the core covering the output ends of the input passages and the input end of the output passage for feeding hot and cold water from the respective input passages to the output passage. An output fitting is fixed to the core over the output end of the output passage. The core is substantially cylindrical and the input ends of the input passages are threaded. The fittings have inner ends threaded into the input ends of the input passages and are provided with respective seal rings engaging the core. The core is provided with set screws or the like for locking the fittings against rotation in the input ends. To this end the inner ends of the fittings are formed with flats engaged by the respective screws.