A zone control valve is a type of valve used to control the flow of a liquid or gas in a specific area. It is often used in heating, cooling, and ventilation systems in order to regulate the temperature and air flow in a particular area. Zone control valves are especially useful in large buildings, as they can be used to separate the building into different zones and control the temperature in each zone individually. The valve is typically controlled by a thermostat that is connected to the control system. Depending on the desired temperature, the thermostat will open or close the valve to allow the desired amount of cool or warm air to flow into the zone. This can help create a comfortable environment in each zone and reduce the energy costs associated with heating and cooling the entire building. Zone control valves are an invaluable tool for businesses and homes alike, as they help reduce energy use and create the perfect temperature in each zone.