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Brown coal dust fires WN9BKSF

WN9BKSF - stored pressure with aqueous solution, frost-proof

The DÖKA permanent pressure foam fire extinguishers are equipped with an extinguishing agent cylinder made of quality sheet steel. The high-quality outer polyester resin coating is tough and weatherproof and protects the extinguishing agent container from corrosion. Inside, the extinguishing agent container is protected from corrosion by a thermoplastic polymer inner coating. The metal fitting with pressed brass body is equipped with a pressure gauge and a separate test valve.

Aqueous solution for dust fires

The DÖKA special extinguishing devices WN9BKSF are suitable for fighting lignite dust smoldering fires or other areas at risk of dust explosions. The DÖKA fire extinguisher WN9BKSF is designed as a permanent pressure fire extinguisher. As a result, and due to its function duration of approx. 14 minutes, it is also ideally suited for preventive use, in order to moisten endangered areas with extinguishing agent and to bind dust. The long hose and the extinguishing lance ensure that the user is at a sufficient distance from the source of the fire. With an additive, the extinguishing agent is frost-resistant down to -30 ° C.

Capacity: 9 ltr. Aqueous solution
Dimensions H x W x D ca. mm: 880 x 380 x 195
Weight ca. kg: 15,9
Throw range ca. m: -
Discharge time ca.: 14 minutes
Operating temp. °C: -30 to +60

Question about this product?


Approval based on DIN EN 3

Areas of application

Mining, mills, silos, asphalt mixing plants, areas at risk of dust fire


The fire extinguisher WN9BKSF was tested for lignite dust smoldering fires. When using on other types of dust than lignite dust, as part of the risk assessment the operator must always carry out appropriate tests for the effectiveness and safety of the extinguishing devices and extinguishing agents used. DÖKA Feuerlöschgerätebau GmbH does not guarantee the effectiveness and safety of dust other than lignite dust.


DÖKA brown coal dust fire extinguisher WN9BKSF
  • Pressure lever valve with brass body
  • Cylinder with polyester resin coating
  • Extra long hose line with applicator
  • Foot ring to protect the bottom of the cylinder
  • Bilingual operating screen German / English