Barber Colman N800-9423 Diaphragm

The Barber Colman N800-9423 is a replacement diaphragm designed for use with the F/M573 series actuators. Manufactured to meet OEM specifications, this high-quality diaphragm ensures long-lasting performance and maintains precise control in pneumatic actuation systems. Now part of Schneider Electric, Barber Colman continues to offer dependable components for legacy and current installations.

Technical Specifications

  • Model: N800-9423
  • Type: Replacement Diaphragm
  • Compatible Actuator: F/M573 series
  • Material: Reinforced elastomer (OEM-grade)
  • Function: Restores proper actuator response and sealing
  • Manufacturer: Barber Colman (Schneider Electric)

Key Features

  • Direct replacement for F/M573 actuator diaphragm
  • OEM quality materials ensure durability and flexibility
  • Maintains correct actuator pressure and stroke range
  • Easy installation with standard actuator disassembly
  • Cost-effective solution for extending actuator service life
  • Designed to restore factory-level pneumatic performance

Compatible Components & Accessories

  • Barber Colman F573 and M573 pneumatic actuators
  • Actuator spring kits
  • Positioning linkages and seals
  • Schneider Electric control systems and parts

Industry Applications

  • HVAC and pneumatic control systems
  • Industrial automation
  • Building energy management
  • Air damper and valve actuation
  • Institutional mechanical rooms

Installation & Maintenance Notes

  • Depressurize actuator system before disassembly
  • Remove old diaphragm and inspect housing surfaces
  • Install N800-9423 with care to avoid pinching or warping
  • Reassemble actuator and test for proper pressure response
  • Replace during scheduled maintenance or when response issues are noted


We ship this product worldwide! Delivery is normally stock.

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