Abrégé

The present disclosure relates to a control valve for heat regulation comprising a housing (3) with a fluid inlet (5) and a fluid outlet (7). A first valve arrangement is provided, comprising a first valve member (25) and a first valve seat (27), regulating a fluid flow based on a thermostat setting as well as a second valve arrangement, comprising a second valve member (11) and a second valve seat (13), regulating a fluid flow based on a fluid pressure difference between the fluid inlet and the fluid outlet. The second valve seat (13) is ring-shaped and the second valve member (11) reaches through the second valve seat (13) against the flow direction, such that an increase in said fluid pressure difference causes the second valve member (11) to move in said flow direction towards the second valve seat (13), thereby constricting the fluid flow. Accurate pressure difference control can be achieved as the first valve member senses the pressure of the incoming water.

Classes IPC  ?

• G05D 7/01 - Commande de débits sans source d'énergie auxiliaire
• F16K 31/12 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide
• F16K 31/64 - Moyens de fonctionnementDispositifs de retour à la position de repos sensibles aux variations de température
• G05D 23/01 - Commande de la température sans source d'énergie auxiliaire