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

Featured
  • Featured
  • Quantity In Stock
  • Price
  • SKU / Model Number
Models matching criteria: 1,153
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$350.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$594.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$853.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$910.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$1,385.00 CAD
$10.00 Shipping
FAIRCHILD Model 24 Snap Acting Relay, Normally Closed, 0.5-30 psig, 3-200 kPa, 1/4" NPT, Tapped Exhaust, Fluorocarbon (Viton) Elastomers view more
  • Switch Position: Normally Closed
  • Set Point Range: 0.5-30 psig, 0.03-2 bar, 3-200 kPa
  • Supply Pressure (Maximum): 120 psig, 8 bar, 800 kPa
  • Ambient Temperature: -40°F to +200°F (-40°C to +93.3°C)
  • Port Size: 1/4" NPT
  • Options:
    • Tapped Exhaust
  • Materials of Construction:
    • Body & Housing: Aluminum Casting
    • Trim: Stainless Steel, Zinc Plated Steel
    • Elastomers: FluoroCarbon (Viton)
100+ In Stock
$1,970.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/2" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$2,117.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$411.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$563.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/2" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$753.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$793.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/2" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$1,573.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 1/2" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$1,639.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$1,983.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$2,153.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$2,392.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$273.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$344.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$494.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$623.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$845.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$1,335.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$1,886.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$1,944.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$2,041.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$2,402.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$2,456.00 CAD
$10.00 Shipping
FAIRCHILD Model 24 Snap Acting Relay, Normally Closed, 0.5-30 psig, 3-200 kPa, 1/4" NPT, Tamper Proof view more
  • Switch Position: Normally Closed
  • Set Point Range: 0.5-30 psig, 0.03-2 bar, 3-200 kPa
  • Supply Pressure (Maximum): 120 psig, 8 bar, 800 kPa
  • Ambient Temperature: -40°F to +200°F (-40°C to +93.3°C)
  • Port Size: 1/4" NPT
  • Options:
    • Tamper Proof
  • Materials of Construction:
    • Body & Housing: Aluminum Casting
    • Trim: Stainless Steel, Zinc Plated Steel
    • Elastomers: Buna N & Dacron
100+ In Stock
$169.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$320.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$552.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$725.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 3/8" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$727.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Straight
  • Elastomers - Buna-N & Dacron
100+ In Stock
$837.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 1/2" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Tamper Proof
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$875.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 2 to 120 (bar: 0.15 to 8, kPa: 15 to 800)
  • Port Size - 1/4" NPT
  • Port Thread - BSPT (Tapered)
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$1,477.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$2,050.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Straight
  • Elastomers - Fluorocarbon
100+ In Stock
$2,132.00 CAD
$10.00 Shipping
  • Switch Position - Normal Closed
  • Pressure Range - psig: 1 to 60 (bar: 0.1 to 4, kPa: 10 to 400)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - No
  • Actuation Adjustment Means - Bias Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$2,290.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - 2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)
  • Port Size - 3/8" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Fluorocarbon
100+ In Stock
$295.00 CAD
$10.00 Shipping
  • Switch Position - Normal Open
  • Pressure Range - psig: 0.5 to 30 (bar: 0.03 to 2, kPa: 3 to 200)
  • Port Size - 1/2" NPT
  • Port Thread - NPT
  • Separate Supply to Pilot - Yes
  • Actuation Adjustment Means - Knob Adjustment
  • Exhaust Port - Tapped Exhaust
  • Elastomers - Buna-N & Dacron
100+ In Stock
$837.00 CAD
$10.00 Shipping

Switch Position

Switch Position

Pressure Range

Pressure Range

Port Size

Port Size

Port Thread

Port Thread

Separate Supply to Pilot

Separate Supply to Pilot

Actuation Adjustment Means

Actuation Adjustment Means

Exhaust Port

Exhaust Port

Elastomers

Elastomers
Part Number / SKU

244122

  • Switch Position

    Normal Open

  • Pressure Range

    2 inches WC to 10 psig (2 inches to 0.7 bar, 2 inches to 70 kPa)

  • Port Size

    1/4” NPT

  • Port Thread

    NPT

  • Separate Supply to Pilot

    No

  • Actuation Adjustment Means

    Bias Adjustment

  • Exhaust Port

    Straight

  • Elastomers

    Buna-N & Dacron

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

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