Barber Colman MA-419-500 Actuator

The Barber Colman PND-245-108 is a pneumatic actuator built for precise proportional control in HVAC and industrial valve applications. Designed for use with VB-11 and VB-9XXX series valves ranging from 1/2″ to 1-1/4″, this actuator provides smooth, accurate modulation in response to standard pneumatic control signals. Its durable construction and direct-coupled mounting make it a dependable solution for temperature and flow regulation systems.

Technical Specifications

  • Model: PND-245-108

  • Type: Pneumatic Actuator

  • Control Signal: Proportional (typically 3–15 psi)

  • Valve Compatibility: Barber Colman VB-11 and VB-9XXX series valves

  • Connection Type: Direct-coupled

  • Control Range: Based on application, typically modulates across full valve stroke

  • Construction: Heavy-duty materials for extended service life

  • Condition: New

Key Features

  • Proportional pneumatic control for precise valve modulation

  • Direct mounting to VB series valves without the need for additional hardware

  • Smooth and consistent response to control pressure variations

  • Compact form factor suitable for tight installations

  • Ideal for HVAC and fluid regulation applications

  • Maintenance-friendly design for long-term reliability

Compatible Applications

  • Hot and chilled water valve control

  • Industrial fluid regulation systems

  • HVAC zone control and central plant operations

  • Pressure or temperature-based pneumatic control loops

Installation & Maintenance Notes

  • Mount actuator directly to compatible valve body

  • Connect to pneumatic control signal source (typically 3–15 psi)

  • Check for full stroke operation and proper valve seating

  • Inspect air lines for leakage and keep free of obstructions

  • Perform regular function tests to verify modulation accuracy


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