Commonly used for class A and class B fires, foam fire extinguishers bring down the fire by letting the foam
separate oxygen from the source of the fire. It acts by creating a cooling blanket on the fire, preventing
reignition and smothering burning materials. Therefore, a foam-type fire
extinguisher is used to bring down fires that are caused by flammable liquid substances like
diesel or paint or solid materials such as paper and wood.
These extinguishers can sometimes be used on electrical fires if they have passed the 35KV conductivity test.
However, remember that foam in a fire extinguisher is not for use in
fires involving grease, cooking oil, or flammable gases, such as butane and methane.
Features of Foam Fire Extinguisher
Originally, foam extinguishers came with a gloopy and thick texture. Moreover, they were quite smelly because
of the usage of high animal protein content. However, over the years, it has improved to become highly
versatile and useful for bringing down multiple types of fires. When you buy
foam fire extinguisher, you get the following major features:
Portable:
These fire extinguishers are highly portable, and you can carry them easily in case of a fire accident.
Versatile Models:
These extinguishers are available in cartridge models and stored pressure models.
Durable:
These extinguishers come with steel cylinders, nozzles, and all metal valves.
Low Maintenance:
A foam fire extinguisher needs very minimal maintenance and is quite affordable.
General Specifications of Foam Fire Extinguisher
Foam fire extinguishers come with precise specifications for effective performance across various fire
scenarios.
Fire Class Ratings: Effective for Class A and Class B fires.
Capacity: Comes in varying capacities, ranging from 1 kg to 150
kg.
Discharge Time: Depends on the capacity and can range from 10-45
s.
Material: Available in carbon steel, stainless steel, cast iron,
etc.
Uses of Foam Fire Extinguisher
Foam fire extinguishers are apt for multiple types of fires.
They are especially effective on Class A (combustible materials like paper and wood) and Class B
(flammable liquids like diesel, oil, and paint) fires.
A foam fire extinguisher is highly suitable for places where different types of fire accidents might
occur, such as warehouses, hotels, offices, garages and factories.
Fuel tankers
Moreover, foam-type fire extinguishers with CO2 are suitable for electrical fires, too.
They are suitable for vehicles, aircraft, and boats where the risk of flammable liquid fires is
significant.
Benefits of Foam Fire Extinguisher
Some major advantages of a foam fire extinguisher are as follows:
Foam fire extinguishers are very easy to access and use.
These extinguishers are entirely nontoxic and only create limited collateral damage to different
materials.
One of the major benefits offered by foam fire extinguishers is that you can recharge them.
Even if you use foam fire extinguishers on electrical fires, it is still safe.
These fire extinguishers help prevent reignition of fire because of their cooling effect.
Buy Foam Fire Extinguishers From Top Brands At L&T-SuFin
With the convenience of purchasing foam fire extinguishers online,
you can easily access high-quality and reliable fire safety solutions. For businesses or large
establishments, to purchase foam fire extinguishers in bulk provides
an efficient and cost-effective way. However, before you buy foam fire
extinguisher online, ensure that you explore the best deals available on L&T-SuFin.
FAQs
1.How does a foam fire extinguisher work?
Foam fire extinguishers bring down the fire by surrounding the flames with thick blankets of foam. In return,
this disconnects the supply of air to the fire, hence reducing its capacity to generate flammable vapours.
When this extinguisher is pointed towards flammable liquids, the foam lets the liquid drain from it before
creating an aqueous film. It creates ideal conditions for the suppression of fuel vapour and seals the
liquid surface. This foam-forming aqueous film prevents the fire from reigniting and also lets the foam fire
extinguishers bring down flammable liquid fires as they create a barrier between the flames and the surface
of the liquid.
2.How to refill foam fire extinguisher?
To refill your foam fire extinguisher, follow the steps given below:
Firstly, remove any pressure from the extinguisher
Empty the foam present in the cylinder
Remove the damaged parts and clean the valve
Rearrange the valve of the cylinder using a new valve system
Make the concentrate of the foam
Now fill the foam concentrate into the cylinder of the extinguisher
Pressurise your extinguisher with the correct pressure
Test the extinguisher and check if any leakage is presented
Now reinstall the hose and the nozzle
At last, check the weight of the extinguisher to acknowledge if it fulfilled the specifications of the
manufacturer
3.Which foam is used in a fire extinguisher?
Aqueous film-forming foam is best for a foam fire extinguisher.
4.Which chemical is used in foam fire extinguisher?
Chemicals such as sodium bicarbonate, aluminium sulfate, and a foam stabiliser are constituents of a foam
extinguisher.
5.What should a foam extinguisher not be used on?
You should not use foam extinguishers on flammable metal fires, electrical fires, gas fires, or cooking oil
fires.