Motorized Zone Valve, Actuator Control Pressure - Maximum Not Applicable, Actuator Control Pressure - Minimum Not Applicable, Actuator Control Signal On/Off, Actuator Return Action Double Acting, Actuator Type Electric, Actuator Voltage 24V AC, Allowable Pressure - Maximum 300 psi, Application Geothermal, Body Material Brass, Body Pattern Three-Way, Bypass Port Coefficient of Volume (Cv) 1.5, Close-Off Pressure 125 psi, Coefficient of Volume (Cv) 4.9, Fluid Temperature - Maximum 220 Degrees F