The 3-way zone valve is built with two main components - the valve and the electric actuator. The valve body is made of brass, while the internal components are made of PPS composite. The electric actuator has a built-in electric cable of 1 meter length. On the actuator there is a position indicator of the valve's internal element. Zone valves are designed for central heating or air-conditioning water systems as switching elements (3-way valves) or shut-off elements (2-way valves). Zone valves are controlled by SPST signal and can be operated from any thermostat or switch.