Fire Extinguishers

The Essential Fire Protection Element

Fire extinguishers are an essential element of fire protection for buildings and vehicles. We cover the installation of extinguishers from our headquarters in Liverpool to the whole of the United Kingdom.

To ensure that the correct fire extinguishers are specified and installed, a fire risk assessment should ideally be carried out beforehand. The fire extinguisher has improved hugely in recent years and with many important developments in extinguishants, there is a type now available for any fire situation.

A monthly visual inspection should be done in-house and recorded in a fire log book and a BAFE approved extinguisher technician should perform a maintenance service to BS 5306, Part 3 once a year - or more if necessary.

Always remember that staff should be trained in the safe use of fire extinguishers. Fire extinguishers are pressurised containers and should always be handled with caution. Fire extinguishers are divided into four categories, based on the different types of fire that can arise. Each fire extinguisher also has a numerical rating that serves as a guide for the amount of fire the extinguisher can handle. The higher this number, the more fire-fighting power.

Types of fire extinguisher available to purchase include water, dry powder, foam, wet chemical and carbon dioxide. Each type of extinguisher is classified and identified according to the type of fire that it is designed to put out. It is essential that the correct type of fire extinguisher is selected to tackle the right job, otherwise there is the risk of accidently intensifying a fire. For example water and foam based extinguishers should never be used on electrical fires. Not only would the fire intensify but the fire fighter would be at serious risk of a fatal electric shock.

The PowerX Range

We stock the PowerX range of fire extinguishers. All of these extinguishers are kitemarked to BS EN3 and come with a 5 year warranty. The build quality is high with nickel plated brass valve assemblies, coated steel levers and polyester external coating. Some come complete with a wall mounting bracket. Easy gauge testing can be done and all are approved to the Pressure Equipment Directive. You can find out more about specifications below.

powerx_water

Water Extinguishers

Like the foam variant, water based extinguishers are predominately used to treat fires that fall under the Class A category. Materials such as fabrics, wood, cardboard and paper can all be treated using water extinguishers.

These extinguishers should not be used for kitchen fires or other hotspots where electrical appliances and flammable products are plentiful. There can be different types of nozzle for this extinguisher. The standard is a jet nozzle, which focuses the water to a specific point during extinguishing and has a fairly long throw, allowing the fire to be fought from a greater distance. You can also find these extinguishers equipped with either a spray or a mist nozzle. Spray nozzles distributes the water over a much greater surface area, allowing the fire to be put out more rapidly often sacrificing some throw to achieve this. Finally the mist nozzle sprays microscopic water particles in a spray and gives the firefighter the added benefit of a shield of cool water mist to reduce the feel of heat and allows one to get slightly closer to the fire to fight it.

Most premises will have these installed as a requirement of their fire safety risk assessment.

TypeWater SPWater Spray SP
Capacity (ltr)96
Fire Rating13A13A
Height (mm)620550
Cylinder Diameter (mm)184162
Overall Width (mm)240225
Filled Weight (kg)13.99.7
Range of Throw (m)> 2> 6
Duration of Discharge (secs)> 9> 9
Working Pressure (at 20°C)12 Bar12 Bar
Temperature Range (°C)+5 to +60+5 to +60
BS EN3 ApprovedYESYES
MED ApprovedN/AN/A
35kv Conductivity Discharge TestYESYES
Pressure Release ValveYESYES
Low Freeze AdditiveNONO
Part Number81/0290581/03404
Model NumberW9W6
powerx_water

Water Extinguishers (with Additive)

These extinguishers are similar to the water variant, except they contain small amounts of chemical additives, which can help increase the effectiveness of the extinguisher. They also come in a smaller size and are lighter.

The additives will work by removing the natural surface tension of the water, making it stick to the burning source and help tackle the fire more effectively.

All Water Extinguishers, with or without additives need to be placed close to an emergency exit on the floor where the risk of Class A fires have been identified.

TypeWater Additive SPWater Additive SP
Capacity (ltr)36
Fire Rating13A21A
Height (mm)430553
Cylinder Diameter (mm)140162
Overall Width (mm)210224
Filled Weight (kg)5.59.5
Range of Throw (m)> 2> 6
Duration of Discharge (secs)> 9> 9
Working Pressure (at 20°C)12 Bar12 Bar
Temperature Range (°C)+5 to +60+5 to +60
BS EN3 ApprovedYESYES
MED ApprovedN/AN/A
35kv Conductivity Discharge TestYESYES
Pressure Release ValveYESYES
Low Freeze AdditiveNONO
Part Number81/0340281/03403
Model NumberWA3WA6
powerx_co2

CO2 Extinguishers

CO2 extinguishers are mainly used for fighting electrical fires and work by helping to remove the oxygen the fire needs to burn. They can also put out Class B fires, caused by flammable liquids.

This type of extinguisher is best placed near to the source of the fire risk - in this case electrical appliances. it should also be placed near to any emergency exits.

TypeCO2 SteelCO2 Steel
Capacity (ltr)25
Fire Rating34B70B
Height (mm)595770
Cylinder Diameter (mm)103.5136
Overall Width (mm)155180
Filled Weight (kg)6.314.2
Range of Throw (m)> 4> 4
Duration of Discharge (secs)> 6> 9
Working Pressure (at 20°C)65 Bar65 Bar
Temperature Range (°C)-30 to +60-30 to +60
BS EN3 ApprovedYESYES
MED ApprovedN/AN/A
35kv Conductivity Discharge TestN/AN/A
Pressure Release ValveYESYES
Low Freeze AdditiveN/AN/A
Part Number81/0290681/02907
Model NumberK2K5
powerx_drypowder

Dry Powder Extinguishers

These extinguishers use special dry powder formula to tackle Class A, B and C fire types and because of this they are also known as ABC Extinguishers.

Fires that can be put out with this type of extinguisher can arise from natural materials, flammable liquids and gas and even electrical fires. The powder can tackle up to 1000 V rated electrical equipment but not anything over this value.

Caution needs to be taken when handling this extinguisher. Powder inhalation can be common and is dangerous to the respiratory system so consider a face mask when using these and more residue can be left on the surface nearby after the fire has been successfully fought. This can potentially make the surface slippery if not cleaned up properly.

This extinguisher needs to be placed close to the source of the fire. They are normally placed in rooms where large and extensive equipment can be found, an example being a boiler system.

TypeABC Powder SPABC Powder SPABC Powder SPABC Powder SPABC Powder SPABC Powder SP
Capacity (ltr)123469
Fire Rating5A 34BC13A 70BC13A 89B21A 89BC27A 144BC34A 183BC
Height (mm)330390430495545590
Cylinder Diameter (mm)85110125140150184
Overall Width (mm)125125170210225240
Filled Weight (kg)2.13.85.56.89.213.6
Range of Throw (m)> 2> 2> 2> 4> 4> 4
Duration of Discharge (secs)> 6> 9> 9> 9> 15> 15
Working Pressure (at 20°C)14 Bar14 Bar14 Bar14 Bar14 Bar14 Bar
Temperature Range (°C)-30 to +60-30 to +60-30 to +60-30 to +60-30 to +60-30 to +60
BS EN3 ApprovedYESYESYESYESYESYES
MED ApprovedN/AN/AN/AN/AN/AN/A
35kv Conductivity Discharge TestN/AN/AN/AN/AN/AN/A
Pressure Release ValveYESYESYESYESYESYES
Low Freeze AdditiveN/AN/AN/AN/AN/AN/A
Part Number81/0290881/0290081/0364581/0340781/0290181/02902
Model NumberPG1APG2APG3APG4APG6APG9A
powerx_foam

AFFF Foam Extinguishers

Foam extinguishers are used for mostly for Class B fires against flammable liquids, however due to the fact they are a derivative of water-based extinguishers, they are well suited to tackling Class A fires too.

This extinguisher works by creating a cooling effect directly on the liquid responsible for causing the fire. The foam creates a barrier between the flammable liquid and the flames that helps to extinguish the fire.

Due to the similarities with water-based extinguishers, this type should not be used on fires that involves electrical equipment in the premises.

This type of fire extinguisher should not be used for fires caused by flammable metals, kitchen fires and fires that involve electrical equipment. Any extinguishers should also be placed by emergency exits on floors or near areas that have been identified as a fire risk for Class A or Class B.
TypeAFFF Foam SPAFFF Foam SPAFFF Foam SPAFFF Multi Use SPAFFF Foam SPAFFF Foam SP
Capacity (ltr)123369
Fire Rating5A 21B5A 34B8A 55B13A 70B 40F13A 144B21A 183B
Height (mm)330390430455550620
Cylinder Diameter (mm)85110140130162184
Overall Width (mm)125125210217225240
Filled Weight (kg)23.85.55.39.713.9
Range of Throw (m)> 1> 2> 2> 5> 4> 4
Duration of Discharge (secs)> 6> 6> 9> 13> 15> 15
Working Pressure (at 20°C)12 Bar12 Bar12 Bar12 Bar12 Bar12 Bar
Temperature Range (°C)0 to +600 to +600 to +600 to +600 to +600 to +60
BS EN3 ApprovedN/AYESYESYESYESYES
MED ApprovedN/AN/AN/ANON/AN/A
35kv Conductivity Discharge TestNOYESYESYESYESYES
Pressure Release ValveYESYESYESYESYESYES
Low Freeze AdditiveNONONONONONO
Part Number81/0364381/0340581/0340681/0369381/0290381/02904
Model NumberF1F2F3F3KF6F9
powerx_wetchemical

Wet Chemical Extinguishers

This type of extinguisher is designed for use on Class F fires, involving cooking oils and fats. Wet chemical extinguishers are also effective at getting rid of Class A fires, however it is better practice to deploy and use water or foam based extinguishers for this class of fire.

Such extinguishers work by creating a barrier between the fuel and source of oxygen, therefore smothering the fire.

Kitchens and canteens are locations where this extinguisher should be placed, ideally on a wall near to the appliances which can cause Class F fires.

TypeWet Chemical Spray SPWet Chemical Spray SP
Capacity (ltr)26
Fire Rating8A 40F13A 75F
Height (mm)405550
Cylinder Diameter (mm)110162
Overall Width (mm)130225
Filled Weight (kg)4.511.23
Range of Throw (m)> 2> 2
Duration of Discharge (secs)> 9> 9
Working Pressure (at 20°C)7 Bar7 Bar
Temperature Range (°C)+5 to +60+5 to +60
BS EN3 ApprovedYESYES
MED ApprovedN/AN/A
35kv Conductivity Discharge TestYESYES
Pressure Release ValveYESYES
Low Freeze AdditiveNONO
Part Number81/0340981/03408
Model NumberW2FW6F