• Slider - Storage of compressed gas cylinders

Safe storage of compressed gas cylinders

Uniform fire protection concept

The safety cabinets for compressed gas cylinders of the SUPREME line plus help you to equip your laboratory with a fire resistance of 90 minutes throughout. In combination with the DÜPERTHAL safety cabinets type 90 according to DIN EN 14470-1, the SUPREME line plus is the right solution for a continuous fire protection concept according to the highest standards.

Safety cabinet type 90 - SUPREME line plus

Type G90 – 90 minutes fire protection

The fire resistance of safety cabinets in accordance with DIN EN 14470-2 is determined on the basis of the temperature rise inside the cabinet in a fire chamber according to the temperature/time curve in accordance with DIN EN 1363-1. Starting from a starting temperature of 20 +/- 5 °C and after the time until the temperature rise on the surface of the cylinder valve holder exceeds 50 Kelvin, the cabinet is then classified as type G15, G30, G60 or G90 (analogous to the time in minutes).


DIN EN 14470-1 for flammable liquids

  • Max. permissible temperature in the cabinet according to DIN EN 14470-1 = 200 °C (392 °F).
  • Temperature curve according to EN 1363-1 in the fire chamber.
  • Example of rising temperature in type 90 cabinet.

DIN EN 14470-2 for compressed gas cylinders

  • Max. permissible temperature on the surface of the valve holder according to DIN EN 14470-2 = 70 °C (158 °F)
  • Temperature curve according to EN 1363-1 in the fire chamber.
  • Example of rising temperature in type G90 cabinet.

Protection goals and minimum requirements

Safety cabinets for the storage of compressed gas cylinders in accordance with DIN EN 14470-2 must be designed and constructed in such a way that in the event of fire the contents do not pose any additional risk of fire spreading. The fire resistance should enable the personnel to leave the working area and the fire brigade to reach the area and contain the fire before the compressed gas cylinders become unstable. In addition, for health and explosion protection, small gas emissions inside the cabinet must be extracted.

Excerpts from the DIN EN 14470-2


  • The cabinets must be provided with air inlet and outlet openings to allow connection to an exhaust air system.
  • The exhaust air flow must ensure that small gas emissions inside the cabinet are extracted.
  • For efficient purging, the air exchange rate must be at least 10 times when storing flammable and oxidizing gases and 120 times for toxic gases.
  • Ventilation must be provided in the upper and lower parts of the cabinet.
  • The pressure drop in the cabinet must not exceed 150 Pa.

Gas and electricity pipelines

  • The number of gas and electric lines shall be limited to the minimum necessary.
  • A maximum of three gas lines with Ø 10 mm and two electric lines with Ø 20 mm are permitted per compressed gas cylinder.
  • For the best possible fire resistance, pipes made of stainless steel or a material with similar thermal conductivity are recommended.
  • Unused feedthroughs must be closed according to the manufacturer's instructions.

Fire chamber test

  • Each cabinet model is type-tested in a fire chamber according to DIN EN 14470-2 type G90/type G30.

Storage capacity

  • The maximum storage capacity per safety cabinet including purge gas is 220 litres, a maximum of four gas cylinders with 50 litres each or up to three gas cylinders with 70 litres each.
  • The compressed gas cylinders in the cabinet may be in use.

Insertion, removal and fastening

  • An access ramp or mechanical lifting device may be used, but it must not be made of aluminium.
  • A suitable fastening system must be installed in the cabinet to prevent the compressed gas cylinders from falling over.

Extracts from DIN EN 14727 or, more recently, DIN EN 16121 and DIN EN 16122

Static endurance test

  • Shelves, e.g. intermediate floors, are subjected to a static load and impact test and must not show any breakage or other damage.

Dynamic load test

  • All mechanical (movable) components such as doors are tested with 50,000 cycles each. After the tests, the doors must close and engage precisely.
Schutzziele und Mindestanforderungen

Tested safety at the highest level included

Baumusterprüfung nach DIN EN 14470-2

Type examination according to DIN EN 14470-2 by recognised test institutes (TÜV Süd, ift Rosenheim).

Klassifizierung Typ G90/Typ G30 gemäß DIN EN 14470-2

Classification Type G90/Type G30 according to DIN EN 14470-2. TÜV-tested according to DIN EN 14727 or newly DIN EN 16121 and DIN EN 16122 (laboratory furniture standard).

GS Zeichen CE Zeichen


TÜV Gütesiegel

High-quality seal of approval for upmarket design, user-friendliness and increased service life.

Matching products

+49 6188 9139-0