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Abort Damper

ADX Series

abort damper

The ADX® abort damper is the last line of defence against fires and explosions coming from a dust collection system. The damper's main function is to prevent the risk of fire within a work environment.

With the aim of ensuring the safety of staff and equipment, it is essential for an abort damper to be present if you meet the following two conditions:

  • The clean air stream exiting a dust collection system is recirculated inside the building.
  • The particles filtered by the dust collector are pyrophoric.

In accordance with standards NFPA 654, 652, 664, and 72, the ADX® abort damper quickly diverts the air outside the building in the event that a spark is detected.

How it Works

1. The contaminated air from the work stations is directed to the dust collector.

2. A spark detection sensor identifies sparks and burning embers in the intake duct.

3. The spark causes an explosion when in the presence of a concentration of pyrophoric dust in the dust collector’s chamber.

4. The pressure generated by the explosion makes its way through the clean air system and is diverted by the damper.

5. The blast is released safely outside.

6. The indoor work environment is protected from a fire or explosion coming from the clean air return duct of the dust collection system.


The ADX® series abort damper is equipped with a lever arm that controls the flap valve in two different positions.

During normal operating conditions, the door stays in a horizontal position, thus allowing the air stream to be directed into the building.

To activate the damper in abort mode, a spark detection sensor is configured to send a signal to the damper. When the sensor, located upstream of the dust collector, detects a spark or burning ember, it sends a signal to release the electro-mechanical latch. The flap valve then quickly falls into the abort position to relieve the pressure from the explosion into the outside atmosphere.

Advantages

electro aimant 450x250

Electromagnetic Latch

Mechanical latch type has been replaced by an electromagnet system to avoid risk failure as well as extend components lifespan.

renforce 450x250

Reinforced Unit

The general design of the series was completely reconsidered. The damper assembly is now fully bolted rather than welded in order to provide a reliable solid construction.

piston 450x250

Simplified Damper Reset

The addition of a pneumatic mechanism coupled to a toggle switch makes it a breeze to rearm the damper.

Specifications

abort damper specifications

Models

A

B
C C1 D E ø Shaft Square
to round
equivalent
in mm in mm in mm in mm in mm in mm in mm in mm
ADX12 41 1041 23 1/2 597 23 1/4 591 25 1/2 648 40 1/2 1029 22 559 3/4 19 13 330
ADX18 54 1/2 1384 35 889 29 1/4 743 31 1/2 800 56 1/2 1435 28 711 3/4 19 20 508
ADX22 55 1397 43 1092 33 1/4 845 37 1/2 953 59 1/4 1505 32 813 1 25 24 610
ADX24 59 1/2 1511 47 1194 35 1/4 895 37 1/2 953 65 1651 34 864 1 25 27 686
ADX28 68 1/2 1740 55 1397 39 1/4 997 41 1/2 1054 73 1/2 1867 38 965 1 25 32 813
ADX32 77 1/2 1969 63 1600 45 1/4 1149 46 1/4 1175 84 2134 43 1/2 1105 1 1/4 32 36 914
ADX36 86 1/2 2197 71 1/8 1807 49 1/4 1251 50 1/4 1276 90 3/4 2305 47 1/2 1207 1 1/4 32 40 1016
ADX40 86 1/2 2197 78 1/8 1984 53 1/4 1353 54 1/4 1378 91 3/4 2331 51 1/2 1308 1 1/2 38 45 1143
ADX48 115 1/2 2934 92 1/8 2340 61 1/4 1556 62 1/4 1581 122 3099 59 1/2 1511 1 1/2 38 54 1372
ADX54 115 1/2 2934 104 1/8 2645 67 1/4 1708 68 1/4 1734 122 1/8 3102 65 1/2 1664 2 51 60 1524
ADX60 115 1/2 2934 110 1/8 2797 73 1/4 1861 74 1/4 1886 122 1/8 3102 71 1/2 1816 2 51 66 1676

Get in touch

If you have any questions or request, please contact us by phone or by filling the form below.

Toll Free: +1-800-263-2303

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