Fairchild Model 90

Fairchild Model 90

Low Pressure Selector Relay Model 90

The Model 90 Low Pressure Selector Relay is designed to select the lower of two signal pressures to provide a continuous output pressure to a control device. The Model 90 is recommended for dead end or low flow service in critical applications such as control loops requiring precise, automatic monitoring of signal pressures.
Standard model 90052


  • Small, rugged design.
  • Soft seat construction.
  • Low selection differential.
  • Fast response.
  • Automatic switching.

  • Suitable for installation where space is limited.
  • Assures positive shutoff.
  • Allow precise control of switching function.
  • Well suited for control in critical loops.
  • Eliminates manual monitoring of signal pressure.

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