Images are representations only.

Model 24 Snap Acting Relay

Brand: Fairchild Industrial Products
The Rotork Fairchild Model 24 Snap Acting Relay is a highly accurate differential relay with snap-acting switching.

The output of the unit will go to supply pressure when the signal is equal to or greater than the setpoint. 

The signal pressure must fall below the set point to return the output to zero.

This pneumatic relay's Near Zero Throttling and Pilot Staging result in true snap-action in your application.
Features
  • Control Sensitivity of 1/8" water column
  • Balanced supply valve
  • Aspirator tube design
  • Separate control chamber
  • Unit construction
  • Designed for use in precision applications
  • Minimizes the effects of supply pressure variation
  • Compensates for output pressure droop under flow conditions
  • Isolates the diaphragm from the main flow to eliminate hunting and buzzing
  • Allows servicing without removal from air line
The Rotork Fairchild Model 24 Snap Acting Relay is a highly accurate differential relay with snap-acting switching.

The output of the unit will go to supply pressure when the signal is equal to or greater than the setpoint. 

The signal pressure must fall below the set point to return the output to zero.

This pneumatic relay's Near Zero Throttling and Pilot Staging result in true snap-action in your application.
Features
  • Control Sensitivity of 1/8" water column
  • Balanced supply valve
  • Aspirator tube design
  • Separate control chamber
  • Unit construction
  • Designed for use in precision applications
  • Minimizes the effects of supply pressure variation
  • Compensates for output pressure droop under flow conditions
  • Isolates the diaphragm from the main flow to eliminate hunting and buzzing
  • Allows servicing without removal from air line
Close

Specifications

Brand

Enclosure, Body Material

  • Aluminum

Actuator Type

  • Knob Adjust
  • Tamper-Proof

BSP Connection

  • 1/2" BSPT Female
  • 1/4" BSPT Female
  • 3/8" BSPT Female

Air Consumption

  • Maximum

Ambient Temperature Range

  • -40° to 93° C (-40° to 200° F)

Sensitivity

  • 0.2 inH₂O to 0.5 psig (Depending on Model)

Pressure Range

  • bar: 0.03 to 4
  • bar: 0.15 to 8
  • kPa: 0.63 to 800
  • psig: 0.5 to 120

NPT Connection

  • 1/2" NPT Female
  • 1/4" NPT Female
  • 3/8" NPT Female

Elastomers

  • Buna-N on Dacron
  • Fluorocarbon (Viton)

Trim Material

  • Stainless Steel
  • Zinc-Plated Steel

Signal or Output Pressure - Maximum

  • bar: 8
  • kPa: 800
  • psig: 120

Vent

  • Straight
  • Tapped Exhaust

Mounting

  • Panel Mount
  • Pipe

Supply Pressure - Maximum

  • bar: 8
  • kPa: 800
  • psig: 120

Supply Pressure Effect

  • psig: 10 (bar: 0.7, kPa: 70) Use Separate Supply Option if Inlet is less than psig: 10 (bar: 0.7, kPa: 70)

Exhaust Capacity - Relieving Units Only

  • 14 scfm
  • 14 scfm (23.8 m³/hour) at psig: 100 (bar: 7, kPa: 700) Drop
  • 23.8 m³/hour

Flow Capacity

  • 14 scfm (23.8 m³/hour)
  • 14 scfm (23.8 m³/hour) at psig: 100 (bar: 7, kPa: 700) Supply
  • 23.8 m³/hour (30)

Relief

  • Relieving
Close