The Barber Colman N800-4402 is a factory-specified replacement spring designed for use with M574 series pneumatic actuators. This high-tension spring is essential for maintaining the spring return function, ensuring that the actuator returns to a fail-safe position upon loss of air pressure. Built for durability and consistent performance, the N800-4402 helps restore original actuator functionality without requiring a complete replacement.
Technical Specifications
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Model: N800-4402
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Type: Replacement Spring
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Compatible With: Barber Colman M574 Series Actuators
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Function: Spring Return Mechanism
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Material: High-strength steel
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Condition: New
Key Features
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Specifically engineered for M574 pneumatic actuator models
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Restores spring return action for safety and reliability
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Manufactured to original factory standards
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Durable construction for long-term use in demanding environments
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Easy to install as part of actuator servicing or repair
Compatible Applications
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HVAC damper actuation systems
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Valve positioning with fail-safe return
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Combustion air and flue damper control
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Industrial pneumatic control systems using M574 actuators
Installation & Maintenance Notes
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Always depressurize actuator before replacing internal spring
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Follow proper safety procedures and manufacturer’s installation guidelines
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Inspect actuator housing and linkage while spring is being replaced
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Confirm return stroke and spring tension after installation
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Use only genuine OEM parts to ensure proper fit and performance
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance