Barber Colman MP-371 Valve Actuator

The Schneider Barber Colman MP-371 is a spring return modulating valve actuator designed for precise flow control in HVAC, industrial process control, and automation applications. This actuator operates at 24V AC and features spring return (S/R) functionality with counterclockwise (CCW) rotation, ensuring fail-safe operation in the event of power loss. It delivers 50 in-lbs of torque, a 90-second travel time for 180° rotation, and comes equipped with an integrated switch (SW) for position feedback.

Technical Specifications

  • Model: MP-371
  • Power Supply: 24V AC
  • Torque Output: 50 in-lbs (5.65 Nm)
  • Rotation: Counterclockwise (CCW)
  • Spring Return: Yes (fail-safe operation)
  • Travel Time: 90 seconds (for 180° rotation)
  • Integrated Switch: Yes, for position feedback
  • Enclosure Rating: Suitable for HVAC and industrial environments
  • Mounting Type: Direct coupling to valves

Key Features

  • Spring return functionality ensures a fail-safe position in the event of power loss
  • 50 in-lbs of torque provides reliable control over a variety of industrial and commercial valves
  • 90-second travel time enables smooth and precise modulation for system efficiency
  • 180-degree rotation allows compatibility with various valve assemblies
  • Integrated switch (SW) provides real-time position feedback for monitoring and automation
  • Durable construction designed for long service life in demanding environments

Compatible Components & Related Parts

  • Barber Colman and Schneider control valves
  • HVAC flow control applications
  • Industrial automation systems
  • Pneumatic and hydronic valve assemblies
  • Building automation systems (BAS)

Industry Applications

  • HVAC Systems: Used for heating, ventilation, and air conditioning valve control
  • Industrial Automation: Precise flow regulation in manufacturing and process industries
  • Water Treatment Plants: Ensures controlled flow in piping and filtration systems
  • Commercial Building Controls: Integrated into automation systems for energy efficiency
  • Power Plants: Used for fuel, steam, and water flow management

Installation & Operational Notes

  • Direct mounting capability simplifies installation on compatible valve systems
  • Spring return (fail-safe feature) ensures the valve returns to a default position in case of power failure
  • Integrated switch provides feedback for remote monitoring and automation integration
  • Low-maintenance design offers extended service life and reliability

 

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MP371

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