Thermostatic mixing valve

A thermostatic mixing valve, comprising a connection housing having a first dividing surface, cold water and warm water inlet and mixing water outlet connections and mixing water inlet, and warm water and cold water outlet apertures opening to the mixing water outlet and warm water and cold water inlet connections respectively for conducting fluid therebetween;

• the cold and warm water outlet apertures and the mixed water inlet aperture opening through the first surface;
• an attachment housing having a second dividing surface for abutting against the first surface, cold, warm and mixed water passages and warm water, cold water and mixed water bores opening through the second surface for placing the cold water and warm water outlet and mixed inlet water apertures in fluid communication with the cold, warm and mixed water passages respectively, operative valve means mounted within the attachment housing for controlling the relative quantity of cold water and warm water flow from the cold and warm water passages to the mixing water passage, and quantity and temperature control means, including a thermostatic element extending within the mixed water passage and mounted on the attachment housing for independently controlling the quantity and temperature of mixed water flowing out of the mixed water passage;
• and securing means for removably attaching the housings together with the first and second surface in removable abutting relationship with the cold, warm and mixed water bores opening to the cold water outlet, warm water outlet and mixed water inlet apertures respectively, the attachment housing having an annular wall portion defining the respective bore and a plug sleeve for each bore that is in fluid sealing engagement with the wall portion defining the respective bore, each sleeve having a first sleeve section in the respective bore and a second sleeve section in the respective cold and warm water outlet aperture and the mixed water inlet aperture that the bore opens to, the plug sleeve in the mixed water bore being made in a single piece and having at least one of a valve seat that forms part of the control means and a limiting abutment for limiting the movement of the thermostatic element in one direction.

A thermostatic mixing valve, comprising a connection housing having a first dividing surface, cold water and warm water inlet and mixing water outlet connections and mixing water inlet, and warm water and cold water outlet apertures opening to the mixing water outlet and warm water and cold water inlet connections respectively for conducting fluid therebetween;

• the cold and warm water outlet apertures and the mixed water inlet aperture opening through the first surface;
• an attachment housing having a second dividing surface for abutting against the first surface, cold, warm and mixed water passages, warm water, cold water and mixed water bores opening through the second surface for placing the cold water and warm water outlet and mixed inlet water apertures in fluid communication with the cold, warm and mixed water passages respectively, operable valve means mounted within the housing for controlling the relative quantity of cold water and warm water flow from the cold and warm water pasages to the mixing water passage, and quantity and temperature control means, including a thermostatic element extending within the mixed water passage and mounted on the attachment housing for independently controlling the quantity and temperature of mixed water flowing out of the mixed water passage;
• securing means for removably attaching the housings together with the first and second surface in removable abutting relationship and the cold, warm and mixed water bores opening to the cold water outlet, warm water outlet and mixed water inlet apertures respectively, the first and second surfaces being planar, the cold and warm water outlet apertures and mixed water inlet connections being arranged in a row and having parallel central axes that are normal to the first surface, the attachment housing having an annular wall portion defining the respective bore and a plug sleeve for each bore that is in fluid sealing engagement with the wall portion defining the respective bore, each sleeve having a first sleeve section in the respective bore and a second sleeve section in the respective cold and warm water outlet aperture and the mixed water inlet aperture that the bore opens to, the plug sleeve in the mixed water bore being made in a single piece and having at least one of a valve seat that form a part of the control means and a limiting abutment for limiting the movement of the thermostatic element in one direction.