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When it has to be pretty fast.


Active decoupling.

reddot design award winner 2020
Made in Germany

When it has to be pretty fast.

In practice, many vessels, silos and devices are connected by pipes, pneumatic conveyors and dust extraction or aspiration lines. If a dust explosion occurs, the flames and pressure waves can spread through these conduits to other parts of the plant. Pre-compression and flame jet ignition exacerbate the explosion in connected vessels. The results is a series of secondary explosions that cause even more catastrophic damage. An isolation system prevents explosions from propagating and thus minimises the consequences of an explosion. It ensures optimum protection for adjacent parts of the plant. Active systems have detectors or sensors which register the pressure rise or flames and trigger countermeasures, e.g. closing a valve.
The explosion isolation system Q-Bic™ is specifically suitable for large pipes or complex shafts geometrics for example in conveyors or bucket elevators in various industry applications.
REMBE® Q-Bic™ with accessoires

Rubber seal

Hygiene disc

  • Effective discharge of the QXP™ via the spin jet extinguish nozzle SJX™.
  • Green extinguishing powder QXP™ prevents cross contamination after activation.
  • Electrical monitored pressure gauge.
  • Easy handling due to integrated transport holder.
  • Most cost-effective way to isolate large pipes.
  • Flexible use due to variable mounting distances.
  • Suitable for use at ambient temperatures from -20 °C to +60 °C.
  • Hygienic mounting material available.
  • Smart triggering device without explosives simplifies import.
The Q-Bic™ explosion isolation system detects an explosion in its very earliest stages and extinguishes the explosion flames within milliseconds by introducing the extinguishing powder QXP™. The special nozzle system SJX™ ensures optimum distribution of the extinguishing powder in the pipe. Thus ensured a secured isolation.
Applications + Industries
  • animal feed productions
  • aspiration plants
  • brewery
  • chemical industry
  • chemical- petrochemical
  • destoners
  • filters
  • food
  • food production
  • mills and grinding plants
  • mixers
  • pharmaceutical industry
  • screens
  • silo
  • spray dryers
  • wood processing


ATEX EC type examination certificate no. GEX 19 ATEX 1002 X

EC type examination
certificate no. GEX 19 ATEX 1002 X

The combination of Q-Bic™ and flameless explosion venting prevents pressure and flames from spreading to other parts of the system.

REMBE® Q-Bic™ on a spray dryer.
REMBE® Q-Bic™ on a spray dryer.
Usually, spray dryers are protected with a combination of isolation systems and vent panels. If a free and safe relief is not possible, the vent panels are replaced by a flameless venting device. To prevent explosion propagation, the connecting pipes are usually isolated with Q-Bic™ chemical barriers.
REMBE® Q-Bic™ on an elevator.
REMBE® Q-Bic™ on an elevator.
Elevators convey large amounts of (combustible) bulk materials, and thus pose a high risk for an explosion. The size and strength of the bucket elevator determine the number and mounting distance for the required protective systems, depending on the bulk material involved. The isolation of the up/down stream conveyors is usually performed with rotary valves or Q-Bic™ chemical barriers.
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  • Scan the QR code with your iOS camera* to see an AR preview of the product.
    Q Bic AR Viewer Ru
    The dimensions shown may differ from those of the actual product.
    * Requires iOS 13, iPadOS 13, ARCore 1.9 or higher.
  • Unboxed - Q-Bic™ Replacement

    REMBE is your specialist in the field of explosion safety and pressure relief and offers holistic safety concepts for plants of all kinds in a wide range of industries. All products are manufactured in Germany and meet the requirements of national and international regulations. In this video, an experienced REMBE employee explains in practical terms how you can replace Q-Bic™ chemical barrier yourself on site with a few simple steps. As well as the explanations in this video, the operating instructions of the products must always be observed. You can find more information about the Q-Bic™ at or contact us directly at Chapters: 00:00 Introduction 00:25 Inspecting the cylinders pressure (0 bar?) 00:33 Bolts and plug-In cable 01:16 Replacement of nozzle system 02:04 Install new Q-Bic™ chemical barrier 02:56 Tighten bolts and connect plug-in cable 03:26 Overview
Your contact person
I will be happy to advise you about the most suitable Protection systems for your plant. Individually, in detail and taking all relevant parameters into ­account.
Tobias Erlmann | Corporate Project Engineer Explosion Safety
Consulting. Engineering. Products. Service.
REMBE® GmbH Safety+Control
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