Britannia Fire P50-M09 9kg Monnex Powder Fire Extinguisher | Multi-Purpose, 10-Year Guarantee
£360.00 (inc VAT: £432.00)
Key features
- Monnex potassium bicarbonate–urea powder — up to 4x more effective than standard dry powder
- 10-year guarantee with no annual service required — self-maintained inspection only
- Rated 223B — suitable for Class B (flammable liquid) and Class C (flammable gas) fires
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Summary
The Britannia Fire P50-MO9 is a 9kg Monnex powder fire extinguisher designed for high-performance suppression of Class B and Class C fires. Utilising a potassium bicarbonate–urea complex, Monnex powder is widely regarded as one of the most effective dry powder agents available, working by interfering with the chemical chain reactions that sustain combustion.
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What sets Monnex apart from conventional dry powder is its unique behaviour in the combustion zone — upon contact with flames, the powder explodes into significantly smaller particles, dramatically increasing its surface area and extinguishing efficiency. The result is faster knockdown of flammable liquid and flammable gas fires compared to standard ABC powder extinguishers.
Built by Britannia Fire in Great Britain, the P50-MO9 features a maintenance-free design constructed from super-strength aramid fibre composite material with an HDPE cylinder body. With a 10-year manufacturer’s guarantee covering corrosion, faults, and workmanship — and no requirement for annual professional servicing — this extinguisher offers a cost-effective, long-lasting fire safety solution for commercial and industrial environments.
Features
- Monnex potassium bicarbonate–urea complex powder for superior fire suppression
- Powder explodes into smaller particles on contact with flames, increasing surface area and effectiveness
- Non-conductive powder — safe for use near electrical equipment (Class E rated)
- Suitable for Class B (flammable liquid) and Class C (flammable gas) fires
- 223B fire rating
- No annual professional service required — simple self-maintained annual inspection
- 10-year manufacturer’s operational corrosion guarantee
- 10-year manufacturing faults and workmanship guarantee
- HDPE cylinder with super-strength aramid fibre composite construction
- Brass nickel-plated operating head (C3771)
- Lightweight and easy to use
- Recyclable and long-lasting
- Accredited to the highest standards — EN3 certified
- Manufactured in Great Britain
- Operating temperature range of -20°C to +60°C
FAQ
What types of fire can the P50-MO9 extinguish?
The P50-MO9 is rated for Class B (flammable liquid) and Class C (flammable gas) fires. Its non-conductive Monnex powder also makes it suitable for use near live electrical equipment (Class E). It is not suitable for Class A (solid material) fires.
What makes Monnex powder different from standard dry powder?
Monnex powder is based on a potassium bicarbonate–urea complex, which is significantly more effective than standard ABC or BC dry powder. When it enters the combustion zone, the powder explodes into much smaller particles, greatly increasing its surface area and enabling faster suppression of the fire’s chemical chain reaction.
Does the P50-MO9 require an annual service by a professional engineer?
No. Unlike traditional fire extinguishers, the P50-MO9 does not require an annual professional service. Instead, it features a simple self-maintained annual inspection process that can be carried out in-house by staff members. This includes checking the pressure gauge indicators, tamper seal, and manufacture date. A yearly inspection date should be recorded in a logbook.
What is the guarantee on this extinguisher?
The P50-MO9 comes with a 10-year manufacturer’s operational corrosion guarantee and a separate 10-year guarantee covering manufacturing faults and workmanship, providing long-term peace of mind.
What should I do if the pressure gauge indicator is in the red segment during inspection?
If the indicator is showing in the red segment, the extinguisher should be returned to the manufacturer or an appointed distributor. Similarly, if the tamper seal is found to be missing, you should contact the manufacturer or distributor immediately.
What is the discharge duration and range of the P50-MO9?
The P50-MO9 has a discharge duration of approximately 22 seconds and a discharge range of 4 metres or more, making it effective for tackling fires from a safe operating distance.
Specifications
- Model: P50-MO9
- Capacity: 9kg
- Fire Rating: 223B
- Full Weight: 11.7kg
- Operating Pressure: 12 bar @ 20°C
- Test Pressure (PT): 22 bar
- Maximum Allowable Pressure (PS): 15.38 bar
- Minimum Burst Pressure: 55 bar
- Discharge Duration: 22 seconds
- Discharge Range: 4+ metres
- Diameter: 210mm
- Height: 640mm
- Temperature Range: -20°C to +60°C
- Cylinder Material: HDPE with aramid fibre
- Operating Head Material: Brass C3771 — nickel plated
- Fire Classes: B, C, E
- Certification: EN3, UKCA, CE
- Country Of Manufacture: Great Britain
Downloads
- Datasheet (Adobe PDF)
