Our Trusted Clients
The fire prevention system principle
Natural atmosphere
(0 % rel. humidity)
By introducing nitrogen, the mixture ratio of the
atmosphere changes.
Natural atmosphere
(example)
When oxygen concentration is reduced, so is
flammability
System schematic of an OxyReduct® solution
Fire protection system with
- Fire prevention
- Fire detection and alarm
Risk analysis for a high-bay warehouse (specific fire risks)
Building construction
- Narrow, high spaces between shelves favor vertical
spread and spillover of fire to other areas
(“chimney effect”) - High value concentration
- Compact storage
- Difficult to overlook & access, fires cannot be fought
manually
High degree of automation
- High number of electrical components
Stored goods & materials
- Packaging materials (cardboard/plastic)
- Type of stored goods (highly flammable self-igniting)
Each material has a specific ignition threshold…
Specific ignition thresholds Wood
OxyReduct® decades of evolution
- 1998 – 1st oxygen reduction system officially
presented - 1999 – 1st system in operation: server room in
Leipzig, Germany - 2007 – 1st design standard (VdS Germany)
- 2021 – FM Global design standard
- Today – more than 1,100 installations in
operation globally - Focus – automated cold stores & warehouses
and server facilities - Also known as – oxygen reduction system,
low oxygen system, hypoxic system
OxyReduct® nitrogen production systems
WAGNER own development and manufacturing
Oxygen reduction protects against fires…
Oxygen reduction: safe also for people
We can quickly adjust to breathing with less oxygen as seen in nature, for example:
- at altitude (mountain, tableland, etc.)
- during air travel
Relationship between O2 supply and altitude
Oxygen reduction – current standards
OxyReduct® Customer benefits
Maximum level of protection to achieve your protection goals:
- Ensuring the operational readiness
- Protection of goods against smoke contamination
- Protection of the goods against damage caused by extinguishing water
- Protection of the infrastructure (e.g. storage system)
- Avoidance of consequential and image
damage
KETTLER Alu-Rad
Fire protection for lithium-ion batteries
- Storage of up to 50,000 e-bikes
- High-bay warehouse or protected area: approx. 107,000 m³ | 30 m high and approx. 100 m long
- Lithium-ion batteries charged to
approx. 30% - Challenge: Thermal Runaway
- Protection goal: Only one e-bike may
be damaged by a thermal runaway
Test results in the high-bay warehouse
Fire protection for lithium-ion batteries
- Protection concept reached at 15.0 vol.-%
- Holes in the bicycle carton are necessary for inerting the atmosphere and for heat dissipation
- Temperature in the neighboring cartons < 60 °C, thus no damage to the neighboring cartons
High-bay warehouse KETTLER Alu-Rad GmbH
Fire protection for lithium-ion batteries
We help with the overall planning of a project from start to finish.
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// our clients
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