Barber Colman M573-3108 Actuator

The Barber Colman M573-3108 is a pneumatic piston damper actuator designed for precise linear control in HVAC systems. Operating within a 5 to 10 psig spring range, it features a 3-inch stroke and a spring return mechanism that retracts the actuator shaft upon loss of air pressure. This actuator is suitable for applications requiring reliable modulation of dampers and valves.​

Technical Specifications

  • Model: M573-3108

  • Type: Pneumatic piston damper actuator

  • Stroke Length: 3 inches

  • Spring Range: 5 to 10 psig

  • Nominal Supply Air Pressure: 20 psig

  • Mounting: Right-angle mounting

  • Included Components: Right-angle mounting bracket and ball joint

  • Air Connection: Barbed fitting for 1/4″ O.D. plastic tubing

  • Spring Return: Yes, retracts actuator shaft on loss of air pressure

  • Condition: New​

Key Features

  • Provides precise linear control for HVAC dampers and valves

  • Spring return mechanism ensures safety during air pressure loss

  • Compact design suitable for various installations

  • Includes mounting hardware for easy installation

Compatible Applications

  • HVAC systems requiring modulating damper control

  • Ventilation and exhaust systems

  • Industrial process control requiring pneumatic actuation

Installation & Maintenance Notes

  • Ensure proper alignment during installation to prevent binding

  • Verify pneumatic connections are secure and leak-free

  • Regularly inspect actuator for signs of wear or damage

  • Follow manufacturer guidelines for maintenance procedures


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