Damper Actuator 1.May use proportional control, control signal 0-10V 2.May use 2-point and 3-point control. 3. CE Standard Damper ActuatorGeneralGA/GD Series Modulating Damper Actuator is widely used to control damper system, the angel travela and motorized ball valve in HVAC system.Control Signal: DC 010VDC2~10V,420mAfeedback signal, on/offDifferent Torque: 4, 8, 16, 24 Nm..Specification MODELGA ...