Description
The Honeywell MP909E1372 Damper Actuator -28/160F Ambient 2-6Psi is a pneumatic damper actuator developed primarily for controlling airflow in HVAC systems. The dampers, which are valves that control the airflow throughout the ductwork, are opened and closed by compressed air. A pressured air signal is received by the actuator, which then applies pressure to an internal diaphragm. The associated damper blade opens or shuts in response to this movement, which is translated into a rotational motion. Since the MP909E1372 is a spring return actuator, when the air pressure is released, it returns to a pre-set position, which is typically closed. If air pressure drops, this guarantees fail-safe functioning. With its lengthy stroke length (28 inches) and medium force range (2.5–6.5 PSI), this specific model may be used with a variety of damper sizes and applications.
