Complete thermostatic valves (head and body) function in winter and in summer. When heating is turned off, the room temperature, which may be high, often causes the valve's rubber flapper to stay under pressure too long, and it can become stuck. Until now, the solution consisted of reducing risk by opening the head all the way (setting 5 in the summer) and tapping lightly on all the surfaces of the valve body with a hammer, until the unit is unstuck (without tapping or touching the needle).
Today, the new design of COMAP thermostatic valve flappers, launched in 2013, avoids sticking even if you forget to open the head. COMAP innovation, for your peace of mind and comfort.