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Wet chemical extinguishers cartridge operated BS-Series PREMIUM LINE Bio+ Fluorine free

Fire classes ABF - Suitable for lithium-ion-batteries - Fluorine free

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 wet chemical 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

The grease fire extinguishing agent Berki Cold is the first that is 100% biodegradable and free of added fluorine, PFOS and PFOA. It is not aggressive and not harmful to humans, animals or the environment. The fire extinguishers of the Bio + series are the alternative for environmentally conscious users.

Also suitable for fires involving lithium-ion batteries

Burning battery cells reach temperatures of up to 1000 ° C. Pure water would suddenly evaporate (delayed boiling) and could seriously injure people nearby. The extinguishing agent Berki Cold binds evaporating water molecules and thus effectively protects against scalding.

Si6BS Bio+ Our recommendation for the home area

The almost universal suitability for all fire hazards make the Si6BS Bio + the first choice for domestic use.

Flammable solid substances, liquids and even grease fires are not a problem for it. In addition, it is also ideal for lithium-ion batteries, which are being used more and more at home.

And the environment is also spared, the extinguishing agent Berki Cold is completely fluorine-free and not harmful to humans, animals or the environment!


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

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

Fire class F
Cooking fats and oils

Additional application

Electrical systems
Up to 1.000 V, minimum distance 1 meter

Areas of application
Snack bars, large kitchens, canteens, restaurants, bicycle workshops, e-bike charging stations, storage and processing of lithium-ion batteries, private sector

Technical data

Si6BS Bio+

Capacity: 6 ltr. fluorine free foam
Rating: 21A / 144B / 40F
Dimensions H x W x D ca. mm: 560 x 235 x 170
Weight ca. kg: 10,5
Throw range ca. m: 4-6
Discharge time ca. Sek.: 32
Operating temp. °C: 0 to +60
MED 2014/90/EU: Yes


DÖKA wet chemical fire extinguisher Si6BS Bio+
  • Fluorine free extinguishing agent
  • Suitable for lithium-ion batteries
  • High extinguishing performance
  • Push button valve with brass body and safety valve
  • Ergonomic handle
  • 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.