Motorized Zone Valve, Actuator Control Pressure - Maximum Not Applicable, Actuator Control Pressure - Minimum Not Applicable, Actuator Control Signal On/Off, Actuator Gears Material Polymer, Actuator Housing Material Polymer, Actuator Return Action Double Acting, Actuator Type Electric, Actuator Voltage 24V AC, Allowable Pressure - Maximum 300 psi, Application Air Handlers, Baseboard Heaters, Convectors, Fan Coils, Heat Pumps, Radiators, Body Material Brass, Body Pattern Two-Way