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Circular rubber diaphragm for miniature air regulator

SPEEDAIRE

SPEEDAIRE 114X45 Regulator Diaphragm

SKU CH-25FN-263KX

Flexible diaphragm seals pneumatic chambers and transmits pressure for regulation in compatible Speedaire equipment

  • Flexible membrane enables precise pressure regulation
  • Compatible with nine Grainger part numbers for Speedaire equipment
  • Replaces worn diaphragms to restore pneumatic valve function
  • Seals chambers reliably in pressure-sensing applications
  • Designed for miniature air regulator assemblies

Replacement Diaphragm for Speedaire Pneumatics

The SPEEDAIRE 114X45 is a flexible membrane engineered for pneumatic pressure control and actuation. It separates chambers and transmits pressure differences to enable mechanical movement in compatible devices. This component serves as a direct replacement part for specific Grainger part numbers associated with Speedaire equipment. It is intended for maintenance technicians and operators servicing pneumatic systems.

Fit and Compatibility in Pneumatic Systems

The diaphragm installs into valves and actuators linked to Grainger part numbers 4ZK74, 4ZK75, 4ZK76, 4ZK80, 4ZK81, 4ZM05, 4ZM06, 4ZM07, and 4ZM08. It provides sealing between chambers to support pressure regulation functions within those assemblies. By restoring the sealing interface, it frees the regulator to maintain consistent pressure control. It is not suited for equipment outside the listed compatible part numbers.

Sustained Operation Characteristics

Under continuous pneumatic cycling, the diaphragm maintains its flexibility to transmit pressure differentials reliably. Its material construction supports repeated actuation without permanent deformation that would degrade regulation accuracy. The design resists fatigue from sustained pressure fluctuations in compatible Speedaire devices. It is not intended for applications exceeding the pressure and temperature limits of the original equipment specifications.

Highlights

  • Flexible membrane enables precise pressure regulation
  • Compatible with nine Grainger part numbers for Speedaire equipment
  • Replaces worn diaphragms to restore pneumatic valve function
  • Seals chambers reliably in pressure-sensing applications
  • Designed for miniature air regulator assemblies

Specifications

BrandSPEEDAIRE

Questions about this item

How long will the 114X45 diaphragm last under continuous cycling before it needs replacement?

The SPEEDAIRE 114X45 diaphragm is designed as a flexible membrane for pneumatic pressure control and actuation, built to withstand repeated pressure differentials in compatible valves and actuators.

Does the diaphragm generate noticeable heat or noise when the regulator runs all day?

As a passive sealing membrane, the 114X45 produces no noise or heat itself; any sound or temperature rise comes from the pneumatic system it operates within.

Which Speedaire regulator models accept the 114X45 diaphragm as a direct replacement?

This diaphragm fits Speedaire equipment linked to Grainger part numbers 4ZK74, 4ZK75, 4ZK76, 4ZK80, 4ZK81, 4ZM05, 4ZM06, 4ZM07 and 4ZM08.

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