R156-1 Thermostatic mixing valve

Thermostatic mixing valve, male-male connections

Description
The thermostatic mixing valve is installed on R156 or R156-1 domestic
sanitary installations in order to achieve energy saving, greater comfort
of use of hot water, elimination of the risk of burns caused by excessive
operating temperatures.
It can be positioned in the boiler room on the rising pipes of sanitary hot
water, nearby boiler or storage boilers, or in the distribution boxes in case
of removable sanitary systems with manifolds. It is very important to install
the mixing valve on the downstream to storage tanks in solar heating
systems installations where the temperature of the storage tanks, especially
in summer, could reach very high values, well above the temperatures
to ordinary use. The wax bulb, immersed in the mixed flow, assisted by
a balanced spring system, can ensure the maintenance of the required
mixed temperature value, with rapid shifts of few millimeter tenths effected
depending on the temperature change of the hot and cold supply waters.

Regulation
The R156/R156-1 thermostatic mixing valve with five setting positions allow
to set the mixed temperature in the range of 38÷60°C.
As stated in the table, each value of the numbering corresponds to a
reference temperature. For intermediate positions to the numbering values,
you have mixing temperatures differentiated of about 1°C.
The setting adjustment of the mixing valve is carried out by lifting the
handle and turning it until it reaches the desired numbering and then
repositioning it in the grooves present at the top of the body.