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Foam extinguishers cartridge operated BS-series PREMIUM LINE - Fluorine free foam in cartridge

SK6BS ECO, SK9BS ECO - Fluorine free foam in concentrate cartridge

Brass valve and safety device for the highest demands on quality and safety

The DÖKA cartridge operated fire extinguishers of the BS series are equipped with a high-quality push button valve and cap nut made of nickel-plated brass. In addition to the standard, the BS series is also equipped with an additional pressure relief valve with a brass body, which protects the cylinder from excess pressure. The generous dimensioning of the safety device and strike button enables the fire extinguisher to be operated with gloves. The ergonomic handle with finger recesses and slip protection offers excellent carrying comfort. The rotating extinguishing pistol enables optimal control of the extinguishing agent jet and the operation of the fire extinguisher with just one hand.

The DÖKA BS series is the highest quality equipment variant of our rechargeable fire extinguishers. High-quality materials, the ergonomic design and the extensive selection of different types of fire extinguishers. We offer frost-proof wet and grease fire extinguishing agents as well as special extinguishing devices exclusively in the BS series. The PREMIUM LINE for the highest demands on quality, reliability and safety.

The DÖKA cartridge operated foam fire extinguishers of the BS-series with internal propellant cartridge. The fire extinguisher is only put under operating pressure after pulling the securing and depressing the push button when it is in use. This ensures a high level of operational reliability, saves material and minimizes maintenance costs.

Fluorine-free foam in concentrate cartridge

In foam cartridge fire extinguishers, the foam concentrate is separated from the water; it is stored in a cartridge. The foam concentrate and water are therefore not mixed until the propellant gas cylinder is opened in the event of use.

By storing the foam concentrate in the cartridge, it does not come into contact with the other extinguishing liquid. This results in a considerably longer shelf life of the extinguishing agent and consistent extinguishing performance over the period of use. The foam additives of the latest generation in our foam cartridge fire extinguishers contain no fluorine and are used only in very small quantities.
Fluorine-free foam additives, long shelf life and easiest disposal for a clean environment.

The fire extinguishing agent foam is produced from a water/foaming agent mixture by admixing air. For fires of solid materials (fire class A), the high wetting effect combined with the interruption of the gas exchange and the cooling effect are the main reasons for the excellent extinguishing properties. Foam extinguishing agents act by covering the entire surface of flammable liquids with a vapor-tight foam blanket, which prevents oxygen from entering (sticking effect) and cools the surface (cooling effect).

Why fluorine-free foam?

There are plans to completely ban fluorine in fire extinguishing agents or to place their use under heavy regulation. The exact wording of the ECHA (European Chemicals Agency) remains to be seen. It is also not yet clear when this ban will be implemented and what the transitional periods will be.

The SK6BS ECO and SK9BS ECO, with the latest generation of foam extinguishing agents, already do not contain any harmful fluorine and thus meet the upcoming requirements for a clean environment.


Fire class A, combustible solid materials
such as wood, car tires, textiles

Fire class B, flammable liquids
such as alcohols, petrol, paint, oil

Electrical systems
Up to 1.000 V, minimum distance 1 meter

Areas of application
Administration and production areas, car workshops, sales rooms, guest areas in hotels and restaurants, schools, public areas, cinemas, discos, private areas

Technical data


Capacity: 6 ltr. foam
Rating: 34A / 144B
Dimensions H x W x D ca. mm: 560 x 235 x 170
Weight ca. kg: 10,7
Throw range ca. m: 4-6
Discharge time ca. Sek.: 36
Operating temp. °C: 0 to +60
MED 2014/90/EU: No


DÖKA foam fire extinguisher SK6BS ECO
  • Fluorine free foam
  • High extinguishing performance
  • Push button valve with brass body and safety valve
  • Ergonomic handle
  • With foam cartridge for high performance and long durability
  • Cylinder with polyester resin coating
  • Turnable pistol
  • Foot ring with hose adapter to protect the bottom of the cylinder
  • Bilingual operating screen German / English

Quality features

Push button valve made of brass - only in the BS series

The body of the push button valve is made of nickel-plated brass. All other components such as hose, riser pipe, blow pipe and propellant gas cartridge are mounted on the base body. Nickel-plated brass is significantly more resistant to extinguishing media and environmental influences and therefore more durable than plastic fittings. For this reason we only offer certain device versions in the BS series, such as frost-proof water and foam extinguishers. We also offer fire extinguishers with MED approval, i.e. for use on ships, only in the BS series.