Honeywell MP909E1513 Spring Return Pneumatic Damper Actuator 9-15 PSI

The Honeywell MP909E1513 is a spring return pneumatic damper actuator designed to provide reliable control of air dampers in HVAC systems. This medium-force actuator operates on a pressure range of 9-15 PSI and uses pneumatic signals to regulate damper position.

These actuators are used for proportional control of variable volume terminal units, mixing boxes, and small to medium sized dampers. The spring return system automatically returns the damper to a preset position (typically closed) in the absence of an air signal, providing a fail-safe backup method in case of power failure or loss of control signal.

Key Features:

• Rolling diaphragm operated for smooth, reliable operation
• Low friction shaft bearing for extended service life
• Close tolerance on operating range and stroke for precise control
• Non-overlapping spring ranges for sequencing with other actuators
• Corrosion resistant materials for durability
• Optional adjustable stroke feature

Includes mounting bracket (14002851-001), ball joint (315321), and pushrod (316462-062). Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell actuator models.