Description
The Honeywell MP918B1006/U Damper Actuator Pneumatic is designed for positioning medium- to large-sized dampers in commercial HVAC systems. It operates through a rolling diaphragm and piston assembly that responds to air pressure changes to regulate airflow within duct systems. Commonly installed in variable air volume units, air handling equipment, and zone control applications, the actuator assists in maintaining the system proper ventilation and temperature balance throughout the building. Its spring return operation provides damper positioning during pressure loss, supporting stable airflow control and dependable operation systems.









