The thermostatic mixing valve is used in systems that produce domestic hot water. It is designed to maintain the preset temperature of the mixed water delivered to the user outlet, when there are variations in the temperature and pressure of the hot and cold water at the inlet, or in the drawn-off flow rate.These devices are also available with fittings complete with strainers and check valves on the hot and cold water inlets.

The thermostatic mixing valves can be deleivered as complete valve groups including safety valves, mixing valves and shut off valves.