TBS Brass Thermostatic Mixer - Article 5005


It automatically regulates the water temperature at a wished value mixing hot and cold water. It allows the maximum comfort,relevant water and energy saving, it avoids the danger of accidental scalding on the installations for the distribution of hot water,supplied by any kind of boiler or by solar panels, for domestic or community bathrooms.

Please Keep to connections as follows:

Hot (H)= hot water inlet Cold (C)= cold water inlet Mix= mixed water outlet

  • If the pressure of hot and cold differ relevantly one from the other it is necessary ko have check valve mounted at the inlets.

  • If the incoming water contains residuals it is necessary to mount filters.


The valve is factory-set with cold water at 15÷20°C and hot water at 70°C at 3 bar so that the numbers printed on the handle indicatively correspond to the following temperatures:

Handle position Min 1- 2- 3- 4- 5 Max

Temperature 30 38 42 52 65 -


  • Cast, sand blasted and chromium plated 0T58

  • Nylon handle (Thermo-stamped)

  • Thermo-sensitive wax element

Sizes- 3/4” to 1"

Technical Features:

Maximum Working Pressure 10bar

N.,B. For Pressure over Bar we recommend to use a reducer

Recommended Pressure 1-5 Bar

Hot water maximum temperature 110°C

Standard Temperature Range 30°C ÷65°C

As general introduction to thermostatic mixing valve we can say that the thermostatic mixing valve is a valve that offers water at a constant and fixed/comfortable temperature;

These are the main advantages of using a valve that can modulate the temperature.

The valve is composed of a body (where hot and cold water are mixed to obtain the desired temperature) and two inlets (one for cold and one for hot water); if we consider a three way valve we have one outlet for the mixed water (that could be the central or on side port depending on the model.

The heart of the regulation is the thermostatic element composed of a piston in copper material and of a wax part, sensible to temperature; this was part expands or decreases itself according to the felt temperature and this movement makes the piston move; Being placed in the valve’s body the movement of the piston opens or closes totally or partially the inlets, according to the temperatures of hot and cold water and to the desired temperature.

The outlet temperature can be adjusted by operating on the handle; on the handle there are numbers which corresponds to different temperature values so by moving the handle towards plus or minus you will regulate the temperature to consumption towards higher or lower temperatures according to what you desire.

It is easy to understand, in sanitary installations, for example without thermostatic mixing valve the end user can have high and non constant temperature which could be dangerous as well as non comfortable also the process of manual mixing results in wastage of water.

The thermostatic valves for solid fuel applications are useful to avoid condensation. Indeed the water temperature produced by solid fuel boilers is normally very high, much higher than the desired temperature.

So before going to installation the temperature must be drastically reduced and this can cause condensation which is not useful for boiler and all other devices (condensation creates encrustations which damages boiler and devices).