Note: Descriptions are shown in the official language in which they were submitted.
BACKGROUND OF THE DISCLOSURE
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FIELD ~F THE INVENTION
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The invention relates to a sanitary mixing valve,
particularly with a colored valve body to receive the
control elements.
DESCRIPTION OF THE PRIOR ART
Stop or mixer valves of this type, with colored valve
bodies, have been known for many years and are installed
particularly in bathrooms and kitchens. As a general rule,
the valve bodies are made of brass and have metallic or
non-metallic surfaces. When making valve bodies of different
colors, it is the practice either to coat them with a-wet
lacquer, whioh is protected by a layer of -transparent
synthetic resin~when it has dried, or to apply a powder
coating which is sto~ed.
A disadvantage of previous valves of this type is~that
the metallic or non-metallic surfaces are not resistant
either to cleaning material or scratching and, because of
the high ~e~d conductivity of brass, are subject to
considerable abrupt fluctuations in temperature, which is
unpleasant to the user. -~dded to this is the fact that- it
is difficult, from the point of view of the manufacturlng
process, to provide decorations, ornamental features,
markings or the like on the conventional surfaces. Chromium
plated valve bodies are also subject to calcification. And,
furthermorej when the previous valve bodies,become damaged,
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they can either not be exchanged at all or only at
considerable expense.
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SUMMARY OF THE INVENTION
The object of the invention is to avoid these
disadvantages and to provide a stop or mixing ~alve of the
above type which is simple to manufacture, reliable in its
operation, easy to assemble and easy to repair.
This ob~ect is achieved in that the valve body is made
of a ceramic material7 is in one piece and can be exchanged
separately, the body can be put over a premountable
connecting member containing the control elements and
provided with water supply passages with seals interposed
between the valve body and the connecting member, and the
connecting member can be connected to the water installation
and fixed to a sanitary appliance or a wall.
BRIEF DESCRIPTION OF_THE_DRAWINGS
An example of the invention, in the form of a single-
lever mixing assembly for wash stands, is shown in
longitudinal section in the accompanying drawing in which
FIG. 1 is a sectional view, in elevation, of a sanitary
mixing valve of the inven~ion hereln fully assembled.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
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FIG. 1 iIlustrates a sanitary mixing valve, the body of
which is made of porcelain and has a glazed surface. There
is a brass sleeve 2 in the valve body 1, with a shoulder 3
- ~h, c J~ rno~ s
to support a connecting base a cartridge 5
containing the control elements. The control elements are
actuated by means of a control lever 5', having a porcelain
hand lever, not shown, coupled to it. The brass sleeve 2
is glued to the valve~body 1 so as to withstand pressure and
is, thereby, fixed and radially sealed as by bonding. Base
~2~ 7
4, provided with connecting pipes 6 for hot and cold water,
is fixed in the sleeve 2 by a screw 7. The mixing valve is
fixed on the wash stand, not shown, by means of a threaded
stud bolt 8. A jet control, bonded to the outlet end 10 of
the valve body so as to withstand pressure, is shown at 9.
It is advantageous to use a jet control because the use of
so-called water air mixing nozzles with screen inserts might
lead to blockages and thus cause dynamic pressure, which
would subject the ceramic valve body 1 to undesirable strain
pressures.
The manufacture of a valve, according to the invention,
does not present any difficulties. The cost is relatively low.
The ceramic valve bodies, which have far lower heat
conductivit~ than metal designs and which, therefore, remain
at a comfortable temperature in operation, can be produced in
any desired colors and shapes, and provided with any desired
decorationsj ornamental features, markings, etc. This also
means that there is no ~ifficulty in providing the easy-care
valve bodies-with glaze-baked surfaces, corresponding to
those of colored kitchen sinks or sanitary appliances, such
as wash stands, bidets, baths or the like. There is no danger
of calcification. The surfaces are resistant to cleaning
materials and scratching.
As already mentioned, the construction described and
illustrated, is only by way of example for practicing the
invention. The invention is not restricted to it, and there
are other possibilities in the framework of the basic
inventive idea, particularly with regard to the arrangement
and form o~ ~he various parts. The technical functioning of
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a mixing valve, according to t:he invention, is the same as
that of conventional disc-type mixing valves, as disclosed
in DT-AS 15 50 060.
In accordance with the invention, the porcelain valve
body 1 is shaped by a combined turning and casting process.
Good dimensional accuracy for housing the cartridge 5 and
brass sleeve 2 can be obtained by turning, while the outlet
portion is made by casting, and trimmed.
