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for dryers, automatically reclosing.

Made in Germany

Self reclosing and reusable explosion door for drying systems.

Drying processes in the food industry are often associated with the generation of explosive atmospheres. The applicaton of explosion protective systems is imperative, in particular due to the high probability-occurrence of glowing embers and hot surfaces. As a result of the function-related elongated design of ring dryers, post-explosion-fires in ring dryers are boosted by the so-called chimney effect, if the pressure relief devices remain open after an explosion. The REMBE® explosion door ETX™ prevents post-explosion-fires by self-reclosing after the explosion pressure has been relieved, thus preventing the supply of oxygen to the air. After successful relief the ETX™ will remain undamaged and will be ready for the next usage.
  • Ring dryer: An optimal and safe pressure relief is achieved by attaching the ETX™ to the deflection hood or ring duct.
  • Cyclone (multistage): The most effective arrangement of explosion vents for inertial separators is directly above the immersion pipe.
  • Bag filter: In the case of bag filters, special care must be taken to ensure that the venting devices are placed below the filter elements. This ensures that filter elements do not block the vent areas.
The explosion door ETX™ is based on the air cushion principle. In the event of an explosion, the hinged lid will open extremely quickly, and will then be stopped by the integrated baffle plate. The integrated air cushion dampens the transmission of the kinetic energy to the rigid parts of the ETX™, and ensures that the lid of the ETX™ returns to its original, closed normal position after the explosion pressure has been relieved.
  • Prevents chimney-effect related post-explosion-fires.
  • Self-reclosing.
  • Reusable.
  • High venting efficiency.
  • Trace heating to maintain a snow and ice freeness (optional).
Technical data
Product parameters
Silicon with FDA approval
Burst pressure
Standard vacuum resistance
2500 mm WC
Dust explosion class
St1 and St2
Total weight
48 kg
Door lid weight
9 kg
Inner opening of the door body
500 x 800 mm
Geometric vent area: A
0,4 m2
Venting efficiency
KSt | 0-88 | 89-145 | 146-300
EF | 93% | 95% | 100%
Effective vent area: AW
AW | 0,37m2 | 0,38m2 | 0,4m2
Relief direction
horizontal and vertical
Maximum reduced explosion pressure
max. 2,35 bar g
KG-Wert: ≤ 100 bar*m*s-1
Gas explosion class
Static burst pressure Pstat
0,05 bar g
Ambient temperature
-40 °C bis +50 °C temperatures below 0 °C only permitted with heating
Process temperature
+160 °C at max. +50 °C ambient temperature
Our specialists will gladly consult you personally in case of deviating operating conditions.
Applications + Industries
  • recycling
  • silo
  • spray dryers


Certified in
accordance with

EN 14797
Autonomous safety device with trace heating, certified and type-examined according to ATEX 2014/34/EU

Autonomous safety device
with trace heating, certified and type-examined
according to ATEX 2014/34/EU

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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.
Till Möhle | Project and Sales Engineer
Consulting. Engineering. Products. Service.
REMBE® GmbH Safety+Control
© REMBE® GmbH Safety+Control