suitable for extinguishing most common class B fires

Wet Chemical Extinguisher An extremely effective extinguisher designed specifically for fires involving cooking oils and fats. The chemical puts out the flames, cools the burning oil and seals the surface preventing re-ignition. The extinguisher is easy to use, producing a highly effective spray which helps prevent hot oil splashing on the operator.
We also offer a premium range of with a slightly higher quality specification both in appearance and materials. Our premium range provides superior fire protection and peace of mind, manufactured right here in the UK.

Capable of extinguishing a cooking oil or fat fire of up to 75 litres in size
13A fire rating for all round safety and embraces the 35 kV di-electric test
EN3 red, with official canary yellow colour coding
Wet chemical process seals the surface of burning oil to prevent re-ignition
Ideal for use on electrical, fat or cooking oil fires
Cylinder, lance and nozzle constructed from high quality stainless steel
Unique hose swivel joint for ease of direction of discharge
Available in basic and premium ranges
Manufactured in the UK

Where Can Wet Chemical Fire Extinguishers Be Used?

A can be used in the following scenarios:

Class F fires; cooking fires that include the use of cooking oils, fats, lard, olive oil, and vegetable oil
Class A fires; fires that involve flammable solids like wood, textiles, and paper

In addition, some of the chemical fire extinguishers that exist are allowed to be used in the case of a Class B fire (a fire that involves flammable liquids such as paint, diesel, and petrol). It is essential to check the label or to seek the advice of a fire safety professional in advance if you wish to have a fire extinguisher that can be used on such fire types.
Where Can Wet Chemical Fire Extinguishers Not Be Used?

Wet Chemical Extinguisher There are several instances when a wet chemical fire extinguisher should never be used, these are as follows:

Class B fires; fires that involve flammable liquids (as noted above, this is with the exception of chemical fire extinguishers that have been cleared for such instances)
Class C fires; fires that involve flammable gases, for instance, butane and methane
Electrical fires

How Do You Identify a Wet Chemical Fire Extinguisher?

You can easily identify a wet chemical fire extinguisher by looking out for the following:

There will be a YELLOW-coloured label on the body of the extinguisher, which will read – WET CHEMICAL
The hose will be longer than typical fire extinguishers and will also have a lance attachment
You should see an ID sign nearby which will read – WET CHEMICAL EXTINGUISHER

What Are Wet Chemical Fire Extinguishers Also Known As?

A wet chemical fire extinguisher can be known as one of two other names These are as follows:

Class F fire extinguisher
Class ABF fire extinguisher (only certain versions can have this name applied to them)

How Do Wet Chemical Fire Extinguishers Work?

Potassium is the chemical element that is used in a wet chemical fire extinguisher. Potassium salts are created as a fine mist that is sprayed out and then causes a reaction so that a soapy layer is formed on the surface of the fire.

The mist is fine to not spread the burning oil and works to create a cooling effect and smother the fire.
What Are the Pros and Cons?

This is the sole fire extinguisher appropriate for a fire that involves cooking fat or oil.

Toxic fumes can be created when a wet chemical fire extinguisher is used. Hence the area needs to be very well ventilated after the fire has been put out.
Who Needs Wet Chemical Fire Extinguishers?

All premises that have a professional kitchen or fry foods should also have a wet chemical fire extinguisher. Such premises include the following:

Hotel kitchens
Burger bars
Fish and chip shops

How Do You Use a Wet Chemical Fire Extinguisher?

Safety Notes:

A wet chemical fire extinguisher needs to be used very carefully as there is a risk of splashing burning fat or burning oil into the nearby areas.

Use the following steps to use a wet chemical fire extinguisher safely:

Remove the safety pin to break the anti-tamper seal and stand at a safe distance
If it is safe to do so, switch the heat source off (for instance, the stove or the chip pan)
Take the lance and hold it at arm’s length. You should have it at a considerable distance higher than the fire. The nozzle should be a minimum of 1 metre from the flames.
Use circular motions to gently spray so that the foam will settle and form a surface on top of the fire
Keep spraying so that you use up the full contents of the extinguisher. This will minimize the risk of the fire re-igniting

Our Services

If you need a fire extinguisher maintenance service, our accredited consultants will attend your sites at a time convenient to you. Contact us today to arrange a visit and decide on the future course of action.
Wet chemical fire extinguisher uses:

• Fires involving cooking oils and fats, such as lard, olive oil, butter and vegetable oil (‘class F’ fires)
• Fires involving flammable solids, such as paper, wood, and textiles (‘class A’ fires)

Some wet chemical fire extinguishers are also cleared for use on class B fires – those involving flammable liquids, such as petrol, diesel, and paint. Check the label or ask your fire safety professional before using wet chemical extinguishers on this type of fire.
Using the extinguisher:

• First remove the safety pin to break the anti-tamper seal and stand well back from the fire
• Turn off the source of the heat if safe to do so – e.g. a chip pan or stove
• Hold the lance at arm’s length well above the fire, with the nozzle at least 1 metre away from the flames
• Spray gently in slow, circular movements, allowing the foam to settle on the surface of the fire
• Use the entire contents of the extinguisher to prevent the fire re-igniting
– What Colour Band And What Is It Used For?

Wet Chemical fire extinguishers contain a liquid extinguishing agent which is used to smother fires ignited from cooking oils and fats.

Knowing how and when to use your fire extinguisher is essential to ensuring safety in your office/household.
– What Colour Band?

Wet chemical fire extinguishers come in an all red cylinder with an oatmeal coloured band running around the top.

Wet chemical fire extinguishers are recommended to extinguish class A and class F fires.

Wet chemical fire extinguishers are highly recommended as a safety precaution within commercial kitchens where it is more common for a fire to ignite, involving cooking oils and fats.

They are the only type of fire extinguisher recommended to fight this type of fire.

Commercial kitchens are also recommended to have a foam extinguisher and a CO2 extinguisher on site as a precaution for all fire risks that could occur.

To learn more about the different types of fires and fire extinguishers, please refer to this detailed chart.

How Does A Work?

All fire extinguishers work by removing one or more of the 3 key elements that are required for a fire to flourish.

Wet chemical fire extinguishers are filled with potassium, which cools and lowers the temperature of the fire, therefore stopping the fire from spreading.

When the fire extinguisher is used, the potassium sprays out in a fine mist which then reacts with the fats and oils in the fire (class F fire). This creates a soapy layer on the surface which smothers, cools and extinguishes the fire.

It is advised that Wet chemical fire extinguishers, foam extinguishers and water extinguishers should never be used on fires that involve electrical appliances and equipment (class E fire.)
Class F Fire
Advantages of

Wet chemical fire extinguishers provide fast reduction in the event of a class F fire. By leaving a foam like barrier, it reduces the chances of the fire reigniting.

The low pressure of the extinguisher eliminates the risk of the hot fats and oils being splashed around. This prevents injury from burns and reduces the chance of the fire spreading.

Clean up after use is quick and easy.

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