Zone valve (definition)

Zone valve — is a device used in heating and air conditioning systems to control flow coolant or cooling liquid to individual zones of the building. These valves allow the system to be divided into several independent circuits (zones), each of which can be regulated separately, providing individual temperature control in different rooms or groups of rooms.

Zone valve: principles of operation

Zone valves are typically installed on the supply or return line of each zone and are controlled by a thermostat or automation system. When the temperature in a zone reaches a preset value, the thermostat sends a signal to open or close the zone valve, regulating the flow of coolant to radiators, underfloor heating or other heating elements. This ensures efficient and economical use of energy, as heat is supplied only to where it is needed.

Common Types of Zone Valves

Zone valves can be electromechanical or electrohydraulic, with different types of control - analog or digital. Digital control systems can be integrated with smart homes, which allows for automation and optimization of heating processes, ensuring maximum comfort and energy savings.