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Q-Rohr® DFE Gas

for exhaust ducts of Gas-Fuelled Engines.

REMBE® Q-Rohr® DFE Gas
Made in Germany

Green energy revolution without downtimes.

The situation: Shutting down coal-fired power plants, decommissioning nuclear power stations and reducing CO2 emissions are basic ideas of the green energy revolution. But this dramatic shift in energy production methods also requires solutions that guarantee the availability of a constant energy supply. The output of wind and solar plants is not constant. When it falls, other sources such as gas-fired power stations must make up the difference.
The challenge: An incorrectly functioning gas-fuelled engine can allow a flammable mixture of gas and oxygen to occur in the exhaust system. In the worst case scenario, this could ignite and cause an explosion – not only damaging the engine but also other components and creating a serious risk of injury to persons working in the generator building. Energy production and emergency power supplies would be out of action for an extended period. Unplanned stoppages of gas-fuelled engines therefore pose a significant threat to the stability of the electricity grid and energy supply security.
REMBE® has used its many years of experience in explosion safety to develop a system specifically for protecting gas-fuelled engines. It reduces downtimes to a minimum and thus increases power plant availability.
Q-Rohr® DFE permits flameless explosion venting in the generator building without the need for costly and complex venting ducts. If an explosion occurs, neither flames nor a pressure wave emerge from the vessel. Other areas of the plant and employees working in the building have the best possible protection. Normal operation of the power plant can recommence very quickly after an explosion occurs and the energy supply is secure.
REMBE® Q-Rohr® DFE Gas with Accessoires

rupture disc


The seals are available for all process conditions: Also suitable for high temperatures or sterile requirements.
  • Rapid restart of operations.
  • REMBE® stainless steel filter ensures a high level of noise reduction during normal operation and in the event of an explosion.
  • Eliminates the need for complex venting ducts and wall openings.
  • 100 % seal tightness, to eliminate danger of asphyxiation.
  • 100 % venting efficiency.
  • Individually definable opening pressure.
  • 100 % stainless steel for corrosion resistance.
  • Connection flange in accordance with DIN 86044.
  • No separate safety zones required in outdoor areas.
  • No maintenance required, visual inspection by a technician is sufficient.
  • Eliminates the need for expensive conversion and construction work, e.g. breaking through walls.
The hot flame gases, which can reach temperatures of up to 1.500°C (2.732 °F), are cooled extremely efficiently in the special stainless steel mesh filter inlet developed by REMBE®. This reduces the volume of gas ejected and extinguishes the explosion.
Technical data
Product parameters*
Burst pressure Pstat
0.1 to 0.5 bar
Operating temperature
−10 to +550 °C (14 to 1022 °F)
* Our specialists will be pleased to assist you in finding a solution that matches your specific operating conditions.
Applications + Industries
  • dual-fuel engines
  • Gas


Lloyd´s Registered
DNV GL konform
Bureau Veritas
Erfüllt die Anforderungen der American Bureau of Shipping (ABS)


DE 38 22 012
US 7,905,244

Certified in
accordance with

EN 14797

Application in
accordance with

EN 14994

Developed in
accordance with

EN 16009

The combination of the Q-Rohr® and isolation systems prevents pressure waves and flames propagating to other parts of the plant.

REMBE® Q-Rohr® DFE Gas
REMBE® Q-Rohr® DFE Gas
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Q Rohr AR Viewer Ru
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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.
Marius Bloching | Corporate Senior Engineer Explosion Safety
Consulting. Engineering. Products. Service.
REMBE® GmbH Safety+Control
© REMBE® GmbH Safety+Control