Barber Colman M573-1111 Actuator

The Barber Colman M573-1111 is a pneumatic damper actuator designed for modulating control in HVAC and ventilation systems. This actuator provides proportional movement based on pneumatic input pressure and includes a spring return feature for reliable fail-safe positioning in the event of air pressure loss. Engineered for performance and durability, it is ideal for commercial and industrial damper control applications.

Technical Specifications

  • Model: M573-1111

  • Type: Pneumatic damper actuator

  • Control Type: Proportional (modulating)

  • Return Type: Spring return

  • Application: HVAC dampers and ventilation systems

  • Stroke: Standard (varies with damper linkage setup)

  • Control Pressure Range: Typically 3–15 psi (confirm system specs)

  • Mounting: Direct or bracketed to damper shaft

  • Material: Heavy-duty construction for long service life

  • Condition: New

Key Features

  • Proportional pneumatic actuator for smooth, precise damper control

  • Spring return mechanism ensures fail-safe damper closure or opening

  • Compatible with standard pneumatic control systems

  • Built for continuous operation in commercial and industrial HVAC systems

  • Easy to integrate with existing damper setups using linkage or brackets

Compatible Applications

  • Air handling units and mixing boxes

  • Supply and exhaust dampers

  • Variable air volume (VAV) systems

  • Commercial HVAC zoning and airflow control

  • Energy management systems requiring pneumatic actuation

Installation & Maintenance Notes

  • Ensure correct pneumatic tubing is used and connections are tight

  • Mount actuator securely and align properly with damper linkage

  • Check spring return function before system startup

  • Verify control pressure range matches system settings

  • Inspect periodically for signs of air leakage, stroke obstruction, or linkage wear


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