Flameless Explosion Venting

Flameless vents provide the ultimate passive solution for applications when explosion venting is not possible.

Whether a vessel is located indoors or outdoors in an occupied area, flameless venting can used to provide explosion protection without the need to worry about the flame exhaust or pressure effects. Flameless vents are a truly passive solution with no contamination effects on the process they protect.

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Flameless Venting allows you to have the benefits of explosion venting without the flame exhaust

Flameless venting works by quenching the flame as it is exhausted into the flame arrestor. It eliminates the need to manage the flame exhaust while still relieving the pressure.

Timeline of Physics at Work

25 ms

Pressure rise from a deflagration opens the explosion vent allowing the dust and flame to enter the flameless vent

90 ms

The flame from the deflagration makes contact with the flameless vent mesh and the quenching process begins

200 ms

The deflagration is fully quenched and begins to contract as pressure is relieved and flame is retained

500 ms

As the hot gases cool the flameless vent allows cool air to flow and the explosion is mitigated safely

Economic Flameless Venting

Interceptor®-QR®

The Interceptor®-QR® is a NFPA compliant and FM Approved flameless venting device. Often referred to as a quench tube, the Interceptor®-QR® offers the advantage of optimum venting efficiency to handle any application or dust.

The ultimate in flameless venting technology the Interceptor®-QR® can be used on any application including pneumatic conveying, dust collection, dryers, bucket elevators, conveyors, and silos.

Features include testing for all dust types, the ability to service in the field, options for USDA dairy versions, and burst indication for remote monitoring.

Interceptor®-QR®

Economic Flameless Venting

Interceptor®-LT®

Designed as an economical solution for flameless venting the I-LT features a painted carbon steel frame with stainless steel mesh insert. The rectangular cross section with a curved flameless surface allows for maximum vent area and sleek installation.

Ideal for lighter duty processes with lower pressure/vacuum cycling and maximums the Interceptor®-LT® can be used on variety of applications including pneumatic conveying, dust collection, dryers, bucket elevators, conveyors, and silos.

Features include an access door for inspection, the ability to service in the field, and burst indication for remote monitoring.

Interceptor®-LT®

Flameless Venting for Elevators and Conveyors

Interceptor®-EV®

Specially designed with a slim, elongated profile this flameless vent is ideal for bucket elevators and conveyors where installation locations are limited.

The compact, lighter design allows for easier handling and installation.

Features include an access door for inspection, the ability to service in the field, and burst indication for remote monitoring.

Interceptor®-EV®

Chemical Suppression


Active Explosion Protection

Explosion Venting


Passive Explosion Venting