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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
Specifications
Actuator Type
- Knob Adjust
- Tamper-Proof
Air Consumption
- Maximum
Ambient Temperature Range
- -40° to 93° C (-40° to 200° F)
BSP Connection
- 1/2” BSPT Female
- 1/4” BSPT Female
- 3/8” BSPT Female
Elastomers
- Buna-N on Dacron
- Fluorocarbon (Viton)
Enclosure, Body Material
- Aluminum
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)
Mounting
- Panel Mount
- Pipe
NPT Connection
- 1/2” NPT Female
- 1/4” NPT Female
- 3/8” NPT Female
Pressure Range
- bar: 0.03 to 4
- bar: 0.15 to 8
- kPa: 0.63 to 800
- psig: 0.5 to 120
Relief
- Relieving
Sensitivity
- 0.2” WC to 0.5 psig (Depending on Model)
Signal or Output Pressure - Maximum
- bar: 8
- kPa: 800
- psig: 120
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)
Trim Material
- Stainless Steel
- Zinc-Plated Steel
Vent
- Straight
- Tapped Exhaust
