Model 24 Snap Acting Relay

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Details:

The Fairchild 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.

Features

  • Near Zero Throttling and Pilot Staging result in true snap-action.
  • 14 SCFM Flow rate meets requirements for high forward and exhaust capacity applications.
  • Pneumatic and mechanical set point allows operation from a remote location.
  • Available with Normally Open or Normally Closed Valve Options to meet requirements.
Specifications:

Maximum Supply Pressure
120 psig, [8.0 BAR], (800 kPa)
Minimum Supply Pressure
10 psig, [0.7 BAR], (70 kPa) (use separate supply option if inlet pressure is less than 10 psig, [0.7 BAR], (70 kPa)
Flow Capacity (SCFM)
14 SCFM (23.8 m³/HR) @ 100 psig, [7.0 BAR], (700 kPa) supply
Exhaust Capacity (SCFM)
14 SCFM (23.8 m³/HR) @ 100 psig, [7.0 BAR], (700 kPa) drop
Signal Range
2” (5 cm) W.C. to 120 psig, [8.0 BAR], (800 kPa)
Change in Signal to Operate
See Chart 1 in PDF below.
Repeatability
0.2” (.5 cm) Water Column
CV Rating
0.23
Mounting
Pipe or Panel
Air Consumption
Less than 0.015 SCFM (.03 m³/HR) for 100 psig, [7.0 BAR], (700 kPa) inlet
Ambient Temperature
-40°F to +200°F, (-40°C to 93.3°C)
Materials of Construction
Body and Housing: Aluminum Casting
Trim: Stainless Steel, Zinc Plated Steel
Diaphragms: Buna N and Dacron

Catalogue PDF: application/pdf
Operational PDF: application/pdf
Located in: Relays

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