A full range of UK manufactured portable and wheeled fire extinguishers
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Britannia Premier
Stored Pressure Fire Extinguisher
BMS9 - Monnex Dry Powder

BMS9 Monnex Dry Powder

Monnex is based on a Potassium bicarbonate – urea complex.

The extinguishing powder interferes with the chemical reactions and the fire is extinguished. In the combustion zone Monnex powder explodes breaking into smaller particles which dramatically increases the surface area of the powder.

Monnex powder is nonconductive and will extinguish Class B (flammable liquid) fires and Class C (flammable gas) fires.



  • Manufactured in Great Britain
  • Britannia offer a 7 year quality guarantee against material defects and workmanship
  • Die cast zinc colour coded headcap
  • Large neck ring enables servicing, refilling and internal inspection to be conducted with ease
  • All weather service indicator studs
  • Additional anti-corrosion treatment available
  • A Schrader valve is fitted for ease of re-pressurising
  • Pressure indicator gauge
  • Also available as a Super BC powder model
  • Main approvals and certifications as below

EN3 CE  bafe-bsi

Technical Specification
Model Capacity
Full Weight
Operating Pressure
(Bar) @ 20c
Duration Secs
Range (M)
BMS9 9 233B 15.5 -20º to + 60ºC 12 18 7 190 600

Covid-19 Update

Production has started again at a Norfolk factory making vital fire safety equipment for ambulances, hospitals, police, Ministry of Defence and the rail network across the UK. Read more

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