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Thermostatic mixing valve for vertical mounting upon a horizontal bathtub deck

Image Number 6 for United States Patent #7775450.

An adjustable height housing enables a thermostatic mixing valve (TMV) with a dial permitting manual control of bathtub shower water temperature to be vertically mounted in a horizontal bathtub deck. The housing can be installed on a narrow bathtub rim yet also accommodates substantial substrate thickness of bathtub decks where required. Manual adjustment of hot and cold ring stops is performed from the top-side using only a screwdriver to gain access. The housing includes a long threaded outer sleeve which extends from near the top deck surface to the thermostatic mixing valve (TMV) cartridge body housing below, thereby accommodating any deck thickness from a 1/16 inch thick stainless steel tub edge to a compound deck construction up to 23/4 inches thick. The rotatable temperature dial is coupled to a cap rotatable by the adjustment handle which, in turn, rotates an adjustable extension shaft within the housing.

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