The Barber Colman MK-4451 is a pneumatic damper actuator designed for precise linear control in HVAC systems. It offers dual spring ranges for flexible control options and features a spring return mechanism to ensure fail-safe positioning.
Technical Specifications
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Model: MK-4451
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Type: Pneumatic damper actuator
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Control Signal: 2-position (on/off) or proportional, depending on controller setup
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Spring Ranges: 3–6 psig and 9–12 psig
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Stroke Length: 3 inches
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Actuator Area: 11 square inches
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Motion Type: Linear
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Spring Return: Yes
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Mounting: Right-angle mounting
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Protection Rating: NEMA 1
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Condition: New
Key Features
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Dual spring ranges allow for flexible control configurations
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Spring return mechanism ensures dampers return to a safe position upon power loss
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Compact design suitable for space-constrained installations
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Durable construction for long-term reliability
Compatible Applications
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HVAC systems requiring modulating or two-position damper control
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Ventilation and exhaust systems
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Industrial process control requiring pneumatic actuation
Installation & Maintenance Notes
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Ensure proper alignment during installation to prevent binding
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Verify pneumatic connections are secure and leak-free
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Regularly inspect actuator for signs of wear or damage
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Follow manufacturer guidelines for maintenance procedures
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance