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Model 90 Low Pressure Selector Relay

Brand: Fairchild Industrial Products
The Rotork Fairchild 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.
Features
  • Small, rugged design
  • Soft seat construction
  • Low selection differential
  • Fast response
  • Automatic switching
show more
The Rotork Fairchild 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.
Features
  • Small, rugged design
  • Soft seat construction
  • Low selection differential
  • Fast response
  • Automatic switching
90052
FAIRCHILD Model 90 Low Pressure Selector Relay, 1/4" NPT View More
  • Models: 90 Low Pressure Selector
  • Maximum Signal Pressure: 200 psig, 14.0 bar, 1400 kPa
  • Switching Differential (Minimum) : Less than 0.1 psig, 0.007 bar, 0.7 kPa
  • Differential between Signals (Maximum): 100 psig, 7.0 bar, 700 kPa
  • Pipe Size: 1/4" NPT
  • Material of Construction:
    • Body: Aluminum Alloy
    • Trim: Brass
    • Diaphragm: Dupont Fairprene-Coated Fabric

50+ In Stock
$552.42USD
$14.78 Shipping

Specifications

Ambient Temperature Range

  • -40° to 93° C (-40° to 200° F)

BSP Connection

  • 1/4" BSPT Female

Differential Between Signals - Maximum

  • bar: 7
  • kPa: 700
  • psig: 100

Differential Between Signals - Minimum

  • > psig: 0.1 (bar: 0.007, kPa: 0.7)

Elastomers

  • Dupont Fairprene-Coated Fabric
  • Fluorocarbon (Viton)

Enclosure, Body Material

  • Aluminum Alloy

Mounting

  • None

NPT Connection

  • 1/4" NPT Female

Relief

  • Relieving

Sensitivity

  • Switching Differential: < 0.1 psi (< 0.7 kPa) - Maximum

Signal or Output Pressure - Maximum

  • bar: 14
  • kPa: 1,400
  • psig: 200

Trim Material

  • Brass

Vent

  • Straight