Fire Suppression Systems
for Buses & Road Vehicles

protecfire detexline 4V logo

Fire Suppression System for Buses, Trucks and Railway

Due to urbanization, public transportation is increasingly under pressure to serve more passengers, buses are bigger and runs at higher frequency. The heart of the bus is the engine which is in a totally enclosed area. Most bus fire starts from the engine compartment and spread very quickly throughout the bus.
As a result of protecfire‘s ingenuity and consistent research & development of the extinguishing technology for vehicle engine protection, we created a revolutionary fire suppression technology that is unlike any others. We call this new system detexline (detection – extinguishing Line) ; a pressureless, single pipeline technology.

With this patented system, the extinguishing and pilot function are carried out over just one pipe line, the liquid agent container is compact and factory sealed with no need for pressure gauge, the patented detectors can be selected based on pre-determined temperature for activation (as we believe that the engine compartment have different temperatures at different areas, such as the turbocharger).

  • DMT für Untertageszulassung
  • VdS für Großküchenzulassung
  • SP4912 für den Motorenschutz

Our compact design provides saving on material and mounting, this solution takes up less space in the object it protects and can be optimally integrated. Installation is quick and easy as there are only three main components; Liquid Agent container, Detectors and Spray Bars. No electricity is needed. No plastic tubes as fire detectors!


The protecfire system is developed to use worldwide in both cold and hot climate and designed after the new UNECE Regulation No R107 and the Swedish regulation SP4912.

The protecfire extinguishing system is thoroughly EMC, vibration and temperature tested according to vehicle standards to ensure it will perform in any situation.

Since the system is almost maintenance-free, high expenses and downtimes are significantly reduced for the operating company.


  • No pressure
  • No electricity
  • (nearly) maintenance free
  • Ultrafast detection & extinguishing
  • Hybrid system (liquid/gas)
  • Works in all angles and positions
  • UNECE certified
  • KBA certified in Germany
  • No replacements for 10 years
  • Quality Made in Germany 

GO to recommended product:

protecfire detexline 4V logo

Bus | Trucks | Road Vehicles | Automotive | Special Applications


Go to recommended product:

protecfire detexline electric logo

Protect more than 1 compartment with the same tank with directional valves.
Electrical Cabinets | Hydrogen and electric Buses |Wind Turbines |others

fire suppression system for buses protecfire - r107 unece
en_GBEnglish (UK)