Barber Colman N800-9424 Diaphragm

The Barber Colman N800-9424 is a direct replacement diaphragm for the F/M574 series pneumatic actuators. Designed to meet OEM standards, this diaphragm restores proper pressure response and stroke performance in aging or malfunctioning actuators. Ideal for use in HVAC and industrial pneumatic systems, the N800-9424 helps maintain system accuracy and extend equipment life. Now provided through Schneider Electric, it ensures continued compatibility and dependable operation.

Technical Specifications

  • Model: N800-9424
  • Type: Replacement Diaphragm
  • Compatible Actuator: F/M574 series
  • Material: Reinforced elastomer (OEM-grade)
  • Function: Maintains actuator pressure response and sealing
  • Installation: Internal actuator component
  • Manufacturer: Barber Colman (Schneider Electric)

Key Features

  • OEM diaphragm for F/M574 actuators
  • Durable material ensures consistent performance
  • Restores full actuator stroke and responsiveness
  • Prevents leaks and performance drift
  • Easy replacement during routine service
  • Designed for long-term reliability in pneumatic systems

Compatible Components & Accessories

  • F/M574 pneumatic actuators
  • N800-4405 actuator spring
  • Linkages, mounting kits, and control assemblies
  • Schneider Electric pneumatic control systems

Industry Applications

  • HVAC valve and damper actuation
  • Commercial building automation
  • Industrial air and fluid systems
  • Institutional facility controls
  • Preventive maintenance and repair operations

Installation & Maintenance Notes

  • Shut down and depressurize actuator before service
  • Remove old diaphragm and clean mating surfaces
  • Install new diaphragm carefully to avoid folds or pinches
  • Reassemble actuator and check full travel and seal integrity
  • Recommended replacement during scheduled system maintenance


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