Barber Colman M574-1025 Actuator

The Barber Colman M574-1025 is a pneumatic damper actuator designed for accurate positioning of air control dampers in HVAC systems. Featuring a 4-inch stroke and a spring range of 3 to 12 psig, this actuator ensures reliable and efficient airflow regulation in various applications.

Technical Specifications

  • Model: M574-1025
  • Product Type: Pneumatic Damper Actuator
  • Spring Range: 3 to 12 psig
  • Stroke Length: 4 inches
  • Mounting Type: Right-angle
  • Air Connection: Barbed fitting for 1/4″ O.D. plastic tubing
  • Push Rod Compatibility: 5/16″ diameter
  • Condition: New

Key Features

  • Accurate Damper Control: Provides precise modulation of air dampers in response to pneumatic signals.
  • Right-Angle Mounting: Facilitates easy installation in space-constrained environments.
  • Adjustable Stroke: 4-inch stroke length accommodates various damper sizes and requirements.
  • Spring Return Action: Ensures the actuator returns to its default position upon loss of air pressure, enhancing safety and reliability.

Compatible Accessories

  • Ball Joint Connector: For seamless connection to the 5/16″ push rod.
  • Damper Linkage Kits: Facilitate integration with various damper assemblies.
  • Mounting Brackets: Provide secure installation options for different setups.

Industry Applications

  • HVAC Systems: Ideal for controlling airflow in heating, ventilation, and air conditioning systems.
  • Air Handling Units: Ensures precise damper positioning for optimal air distribution.
  • Building Automation: Integrates seamlessly into automated control systems for enhanced efficiency.

Installation & Maintenance Notes

  • Secure Mounting: Install the actuator using appropriate right-angle brackets to ensure stability.
  • Proper Connections: Utilize the compatible ball joint for connecting the 5/16″ push rod.
  • Regular Inspection: Periodically check for diaphragm integrity and air leaks to maintain optimal performance.
  • Clean Air Supply: Use clean, dry, oil-free air to prevent contamination and prolong actuator life.


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