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JD-2 Air Switches
Antunes JD-2/ 801111 Series

Spring color available in grey, red, blue, purple or orange.

Click 'Select Options' and search by spring color or w.c. inches!
Antunes JD2 Gas Pressure Switch
JD-2 Air Switches<br />Antunes JD-2/ 801111 Series
List Price: Starting at $92.97
Our Price: Starting at $60.43 Buying in volume?
Availability: Standard Stock!
  • Free shipping on orders of $300 or more.

These compact, sensitive Antunes JD-2 switches are made of rugged die-cast aluminum and feature adjustable set point, set-point indication and visible on/off indicator. They’re available in five range scales and deliver the accuracy and reliability you can depend on.

The original Chicago Safety Products switch was called the Model D-1. The Model D-1 was a differential air pressure switch developed primarily for the industrial combustion market.

The D-1 air switch was used to sense air-flow across a burner. The first customer was Despatch Industries in Minneapolis Minnesota with an order for 100 switches.

Following a process of continuous improvement, the second generation of this air-flow switch was soon introduced. This model was called the JD-2.

The model was named as the second (2) generation of the differential switch (D). What does the J stand for? Always a strong family man, August Antunes used this opportunity to name this product for his children, Jim and Jane.

To compliment the air differential safety switch, gas pressure switches were soon added to the product line. These gas pressure switches are designed to sense gas pressure being supplied to a gas burner.

  • Manufactured by A.J. Antunes
  • New lower pricing!
  • Automatic reset
  • Available in Blue, Grey, Red, Purple or Orange springs
    • JD-2 Grey, .1-4" w.c.(801111302)
    • JD-2 Red, .1-24" w.c. (801111303)
    • JD-2 Blue, .07-1.7" w.c. (801111301)
    • JD-2 Purple, .1-10" w.c. (801111310)
    • JD-2 Orange, 5-35" w.c. (801111315)
  • Differential - Vacuum - Pressure
  • Max. pressure surge: 3 psi
  • Max. ambient temperature: 140°F/60°C
  • Min. ambient temperature: -40°F/-40°C
  • Dimensions: 4.02" diameter, 4"D x 5"H
  • Approx. 1 lb shipping weight