“Service-free does not mean maintenance-free. P50 fire extinguishers still require a recorded annual inspection.”
A P50 fire extinguisher is a lightweight composite extinguisher designed to provide long-life fire protection with reduced external servicing requirements.
Unlike conventional steel extinguishers, Britannia P50 extinguishers do not require an external annual service during their first 10 years. However, the prescribed annual maintenance inspection must still be completed and recorded by a trained, competent person.
Different P50 models are designed for different fire risks, so the correct extinguisher must be selected according to your premises and fire risk assessment.
Quick Answer: What is a P50 fire extinguisher?
A P50 is a composite-bodied fire extinguisher manufactured by Britannia Fire. It has a 20-year lifecycle, subject to the required maintenance and a manufacturer’s overhaul after 10 years. P50 extinguishers are available for different fire classes, including water mist and ABC powder models.
Explore Velocity Safety’s UK-wide P50 fire extinguisher supply and installation service.
Key Takeaways – P50 Fire Extinguishers
- P50 extinguishers use a lightweight, corrosion-resistant composite construction.
- They have a potential 20-year lifecycle, subject to the required inspection and overhaul process.
- No external annual service is required during the first 10 years when the prescribed annual checks are completed correctly.
- “Service-free” does not mean that the extinguisher can be installed and forgotten.
- Water mist and ABC powder P50 extinguishers cover different fire risks.
- The correct model, quantity and position should be determined by a fire risk assessment and site survey.
- P50 extinguishers must still be properly installed, commissioned, inspected and documented.
Jump to:
What Is a P50 Fire Extinguisher?
P50 is the name of a range of composite fire extinguishers manufactured in the UK by Britannia Fire.
Instead of a conventional steel cylinder, the internal P50 bottle is manufactured from high-density polyethylene and wound with a strong aramid fibre. The extinguisher also has a UV-protected outer jacket and corrosion-resistant components.
This construction is intended to provide:
- A lighter extinguisher than many equivalent steel models
- Resistance to corrosion in damp or exposed environments
- A long operational lifecycle
- Reduced external servicing requirements
- Double pressure gauges for completing the prescribed annual inspection
P50 extinguishers are available in several sizes and extinguishing media. The term “P50” therefore describes the product range and construction rather than one universal extinguisher suitable for every fire.
A competent assessment is still required to decide which models your premises need.
What Can P50 Fire Extinguishers Be Used For?
What a P50 fire extinguisher can be used for depends on the model and extinguishing medium.
Velocity Safety currently supplies and installs 6-litre P50 water mist and 6kg P50 ABC powder extinguishers. These two models are designed for different workplace risks.
6-Litre P50 Water Mist Extinguishers
The 6-litre water mist model is primarily designed for Class A fires involving ordinary combustible materials such as:
- Paper
- Wood
- Cardboard
- Textiles
- Many furnishings and general workplace combustibles
This makes water mist P50 extinguishers suitable for many offices, schools, accommodation premises, healthcare settings, retail units and other commercial buildings.
The Britannia 6-litre P50 water mist extinguisher has also passed the applicable EN3 test for use near live electrical equipment up to 1000V.
This does not mean that every electrical risk should automatically be covered by water mist. The equipment, working environment and fire risk assessment should be considered when selecting extinguishers.
6kg P50 ABC Powder Extinguishers
ABC powder P50 extinguishers can cover:
- Class A fires – Solid combustible materials
- Class B fires – Flammable liquids
- Class C fires – Flammable gases
They may be suitable for industrial premises, workshops, construction sites, external fire points, vehicles, yards and other mixed-risk environments.
Powder can create a cloud that affects visibility and leaves significant residue. It can also damage sensitive equipment. This means powder extinguishers should be selected according to the specific environment rather than treated as the default option for every indoor workplace.
The P50 name does not identify the fire class
Always check the extinguisher’s label, fire rating and intended applications. A P50 water mist extinguisher and a P50 powder extinguisher are not interchangeable in every situation.
What Types of P50 Fire Extinguisher Are Available?
The wider Britannia P50 range includes water mist, powder, foam and specialist models. This is why search terms such as “P50 foam fire extinguisher” and “P50 Eco fire extinguisher” may return products with different capabilities.
Velocity Safety’s principal P50 installation options are the 6-litre water mist and 6kg ABC powder models.
| Feature | 6-Litre P50 Water Mist | 6kg P50 ABC Powder |
|---|---|---|
| Principal fire classes | Class A | Classes A, B and C |
| Typical environments | Offices, schools, healthcare, accommodation and commercial premises | Industrial sites, workshops, construction sites, vehicles and outdoor risks |
| Use near electrical equipment | EN3-tested for use near live electrical equipment up to 1000V | ABC powder is non-conductive, subject to correct application and risk assessment |
| Discharge considerations | Fine water mist with minimal residue | Powder can reduce visibility and leave extensive residue |
| Selection | Specified according to the Class A and electrical risks present | Specified for suitable mixed, industrial and external risks |
Not every premises should use only one type. A site may require water mist extinguishers in occupied buildings and ABC powder models at suitable external or industrial fire points.
A fire extinguisher survey can establish the correct models, quantities and locations.
Are P50 Fire Extinguishers Really Service-Free?
P50 extinguishers are frequently described as “service-free” because an external annual servicing contract is not required during their first 10 years.
This does not remove the need for maintenance.
The prescribed annual inspection must be completed by a trained and competent person. The result should also be recorded so the business can demonstrate that the extinguisher has been checked.
The inspection should be completed in accordance with the manufacturer’s instructions and the organisation’s fire safety procedures. It includes checks covering matters such as:
- The condition of the extinguisher and its outer body
- The pressure shown by its gauges
- Whether the gauges respond correctly during the prescribed test
- The condition of the operating mechanism, pin and tamper seal
- Evidence of damage, interference, leakage or discharge
- Whether the instructions and identification remain legible
- Whether the extinguisher remains correctly located and accessible
- Whether the inspection has been recorded
Anyone responsible for these checks needs suitable training and must understand when an extinguisher should be removed from service or referred for further examination.
Do not interpret “service-free” as “fit and forget”
A P50 extinguisher that is damaged, discharged, incorrectly positioned or outside its required maintenance programme cannot be assumed to remain serviceable simply because it is less than 10 years old.
How Long Does a P50 Fire Extinguisher Last?
Britannia P50 extinguishers are designed with a 20-year lifecycle.
The first stage covers the initial 10-year period, during which the required annual maintenance inspections must be completed and recorded.
At 10 years, the extinguisher requires a manufacturer’s overhaul. Once the overhaul has been completed successfully, the extinguisher can enter a second 10-year period.
Its full lifecycle is therefore dependent on:
- Correct initial selection and installation
- Completion of the prescribed annual inspections
- Suitable storage and environmental conditions
- No damage, discharge or interference that makes the extinguisher unserviceable
- The required manufacturer’s overhaul after 10 years
A 20-year lifecycle should not be treated as an unconditional guarantee that every extinguisher will remain suitable regardless of its condition.
Are P50 Fire Extinguishers Legal in the UK?
Yes. P50 fire extinguishers can form part of a compliant fire protection system when the products are appropriate for the risks present and are correctly installed, commissioned and maintained.
Britannia states that the P50 range carries approvals and certification including the BSI Kitemark, UKCA, EN3 and PED.
However, UK fire safety law does not simply approve premises because they contain a particular brand or model of extinguisher.
The person responsible for a non-domestic premises must assess its fire risks and put appropriate fire safety measures in place. Government guidance also states that firefighting equipment must be properly installed, tested and maintained.
The responsible person may be an employer, owner, landlord, occupier, facilities manager, managing agent or another person with control of the premises. The precise legislation differs across England and Wales, Scotland and Northern Ireland.
The practical question is therefore not only whether P50 extinguishers are legal. It is whether:
- The selected models are suitable for the identified fire risks
- Enough extinguishers have been provided
- They have been positioned and identified correctly
- They have been commissioned and documented
- The prescribed maintenance process is being followed
Simply purchasing P50 extinguishers online does not answer these site-specific questions.
P50 Fire Extinguishers vs Traditional Steel Extinguishers
P50 and conventional steel extinguishers can both provide effective fire protection when they are correctly selected and maintained. The main differences concern their construction, servicing process and potential lifecycle.
| Comparison | P50 Extinguishers | Conventional Steel Extinguishers |
|---|---|---|
| Construction | Composite internal bottle and protective outer jacket | Predominantly steel cylinder construction |
| External annual service | Not required during the first 10 years when the prescribed annual inspection is completed correctly | Normally requires basic servicing by a competent extinguisher technician at least annually |
| Annual checks | Required and must be completed by a trained, competent person | Routine user checks and scheduled competent-person servicing are required |
| Lifecycle | Potential 20-year lifecycle with a manufacturer’s overhaul after 10 years | Depends on extinguisher type, condition and the applicable overhaul or replacement regime |
| Corrosion resistance | Composite construction is designed to resist corrosion | Steel units can be vulnerable to corrosion in unsuitable environments |
| Initial purchase decision | Often assessed according to longer-term maintenance and lifecycle costs | May have a lower initial equipment cost, depending on type and supplier |
The most appropriate option depends on the premises, fire risks, number of units, existing equipment and how the organisation manages ongoing maintenance.
Velocity Safety can assess an existing extinguisher estate and determine whether a complete or phased transition to P50 equipment is appropriate.
How Much Do P50 Fire Extinguishers Cost?
The cost of P50 fire extinguishers depends on:
- The extinguisher model and capacity
- The number of extinguishers required
- Whether a site assessment is needed
- Installation and commissioning requirements
- The brackets, stands or cabinets required
- Identification and fire point signage
- The number and location of premises
- Removal or disposal of existing equipment
Comparing the price of one P50 extinguisher with one conventional extinguisher does not necessarily provide a useful whole-life comparison.
The evaluation should also consider servicing costs, replacement intervals, the 10-year manufacturer’s overhaul, internal inspection responsibilities and the administrative requirements of managing the equipment.
Velocity Safety provides site-specific quotations covering the required P50 extinguishers, installation, commissioning and accessories.
Current P50 offer
Velocity Safety is currently offering buy three, get one free on 6-litre P50 water mist extinguishers. Availability and the suitability of these extinguishers for your premises should be confirmed when requesting a quotation.
Who Are P50 Fire Extinguishers Suitable For?
P50 extinguishers may be suitable for organisations looking to reduce external servicing requirements or standardise their fire protection across several premises.
Potential applications include:
- Offices and commercial buildings
- Schools, colleges and public-sector premises
- Healthcare and accommodation settings
- Warehouses and logistics facilities
- Manufacturing premises and workshops
- Construction sites and temporary compounds
- Facilities teams managing several buildings
- Outdoor or exposed fire points requiring corrosion-resistant equipment
The product’s maintenance model may be particularly attractive to multi-site organisations. However, the business must still have a reliable process for training competent personnel, completing annual inspections and retaining the necessary records.
Do P50 Fire Extinguishers Require Installation and Commissioning?
Yes. The reduced servicing requirements of P50 extinguishers do not remove the need for correct initial installation and commissioning.
Before installation, the provider should establish:
- The fire classes and specific risks present
- The correct extinguisher models and quantities
- Where each extinguisher should be positioned
- Whether wall brackets, stands or cabinets are required
- What identification signage is needed
- Whether any existing extinguishers should be retained, relocated or removed
The extinguishers should then be installed securely, commissioned and added to the site’s fire safety records.
A proper handover should also explain the annual inspection process and identify who will be responsible for completing and recording it.
Learn more about fire extinguisher commissioning and decommissioning.
Final Takeaway
A P50 fire extinguisher is a long-life composite extinguisher that can reduce the need for conventional external annual servicing.
Its main benefits include corrosion-resistant construction, a potential 20-year lifecycle and a maintenance system that can be managed in-house by an appropriately trained and competent person.
However, P50 extinguishers are not genuinely maintenance-free.
They must still be:
- Selected according to the fire risks present
- Installed and commissioned correctly
- Inspected annually using the prescribed procedure
- Recorded within the organisation’s fire safety documentation
- Overhauled by the manufacturer after 10 years if they are to enter their second 10-year period
The safest starting point is a site assessment that identifies the correct water mist, powder or combined provision for your premises.
Considering P50 fire extinguishers for your premises?
Velocity Safety provides UK-wide P50 fire extinguisher assessment, supply, installation and commissioning.
Tell us about your premises, current extinguishers and fire risks, and we’ll recommend a suitable package including water mist or ABC powder units, brackets, stands, cabinets and signage where required.
Current offer: Buy three, get one free on 6-litre P50 water mist extinguishers.
📞 Call: 01254 933 486
📩 Email: info@velocitysafety.co.uk
🌐 Or contact Velocity Safety online.
Frequently Asked Questions
What does P50 mean on a fire extinguisher?
P50 is the name of Britannia Fire’s range of composite fire extinguishers. It describes the product family rather than one particular extinguishing medium or fire classification.
What can a P50 fire extinguisher be used for?
That depends on the model. A 6-litre P50 water mist extinguisher is principally suitable for Class A combustible-material fires and has been tested for use near live electrical equipment up to 1000V. A 6kg P50 ABC powder extinguisher can cover Class A, B and C risks.
Are all P50 fire extinguishers foam extinguishers?
No. The P50 range includes water mist, powder, foam and specialist models. The extinguisher label and fire rating must be checked to establish what a particular P50 can be used for.
Do P50 fire extinguishers need annual servicing?
They do not require a conventional external annual service during their first 10 years when the manufacturer’s prescribed annual inspection is completed correctly. That inspection must still be undertaken and recorded by a trained, competent person.
Are P50 fire extinguishers completely maintenance-free?
No. P50 extinguishers require annual maintenance checks and must be removed from use or investigated if they are damaged, discharged, tampered with or found to be outside the acceptable condition.
How long does a P50 extinguisher last?
P50 extinguishers have a potential 20-year lifecycle. A manufacturer’s overhaul is required after 10 years before an extinguisher can enter its second 10-year period.
Are P50 fire extinguishers legal in the UK?
Yes, provided they are suitable for the identified risks and are correctly installed, commissioned and maintained. Compliance depends on the overall fire risk assessment and fire protection arrangements, not simply the brand of extinguisher purchased.
Can P50 water mist extinguishers be used on electrical equipment?
Britannia’s P50 water mist extinguisher has passed the applicable EN3 test for use near live electrical equipment up to 1000V. The correct extinguisher provision should nevertheless be selected according to the equipment, environment and site fire risk assessment.
Are P50 extinguishers suitable for outdoor use?
Their corrosion-resistant composite construction can make P50 extinguishers suitable for demanding or exposed environments. Appropriate cabinets, stands and mounting arrangements may still be required to protect the equipment and maintain accessibility.
Can a business inspect its own P50 extinguishers?
The prescribed annual inspection can be managed in-house where the person completing it has received appropriate training and is competent to follow the manufacturer’s procedure, identify problems and maintain the required records.
Do P50 extinguishers need to be commissioned?
Yes. New P50 extinguishers should be correctly positioned, securely installed, commissioned and documented before being placed into service.
Where can I buy P50 fire extinguishers near me?
Velocity Safety is based in Blackburn, Lancashire, and supports businesses across the North West, including Lancashire, Greater Manchester, Merseyside, Cheshire and Cumbria. UK-wide P50 supply, installation and commissioning is also available for individual and multi-site organisations.
