The Barber Colman M574-6208 is a pneumatic actuator engineered for proportional control in HVAC and industrial automation systems. Designed with a spring return mechanism for fail-safe operation, this actuator delivers precise modulating control over a 4-inch stroke. It operates within a standard 10 to 15 psi control pressure range, making it suitable for dampers, valves, and other applications requiring linear actuation with accurate response.
Technical Specifications
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Model: M574-6208
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Actuator Type: Pneumatic
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Control Type: Proportional
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Return Type: Spring return
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Control Pressure Range: 10 to 15 psi
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Stroke Length: 4 inches
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Mounting: Linear actuator with linkage (valve/damper adaptable)
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Condition: New
Key Features
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Proportional pneumatic actuator for modulating control
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Spring return mechanism ensures safe positioning on pressure loss
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4″ stroke provides broad range of motion for dampers and valves
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Works within a 10–15 psi control signal range
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Rugged, reliable design for commercial and industrial use
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Compatible with a variety of HVAC and process control systems
Compatible Applications
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HVAC damper modulation
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Steam and hot water valve actuation
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Pressure-dependent control systems
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Pneumatic control loops in building automation
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Energy management and zone control systems
Installation & Maintenance Notes
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Ensure air supply and control signal are within 10–15 psi
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Mount with proper linkage or bracket for your valve/damper configuration
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Confirm return direction based on spring orientation
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Periodically inspect air lines and actuator housing for wear or leaks
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Test stroke and proportional response during commissioning
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance