In some cases, wet chemical fire extinguishers may be approved for limited Class A or Class B fires, subject to manufacturer certification. It is essential to check the extinguisher label or seek professional advice before use.<\/p>\n
Where Can Wet Chemical Fire Extinguishers Not Be Used?<\/h2>\n
![\"Wet](\"https:\/\/fire-risk-assessment-network.com\/blog\/wp-content\/uploads\/2018\/05\/Wet-Chemical-Extinguisher-300x300.jpg\")
There are several instances when a wet chemical fire extinguisher should never be used, these are as follows:<\/p>\n
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- 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)<\/li>\n
- Class C fires; fires that involve flammable gases, for instance, butane and methane<\/li>\n
- Electrical fires<\/li>\n<\/ul>\n
How Do You Identify a Wet Chemical Fire Extinguisher?<\/h2>\n
You can easily identify a wet chemical fire extinguisher by looking out for the following:<\/p>\n
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- There will be a YELLOW-coloured label on the body of the extinguisher, which will read – WET CHEMICAL<\/li>\n
- The hose will be longer than typical fire extinguishers and will also have a lance attachment<\/li>\n
- You should see an ID sign nearby which will read – WET CHEMICAL EXTINGUISHER<\/li>\n<\/ul>\nCONTACT US FOR A FREE QUOTE<\/a><\/div>\n
What Are Wet Chemical Fire Extinguishers Also Known As?<\/h2>\n
A wet chemical fire extinguisher can be known as one of two other names These are as follows:<\/p>\n
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- Class F fire extinguisher<\/li>\n
- Class ABF fire extinguisher (only certain versions can have this name applied to them)<\/li>\n<\/ul>\n
How Do Wet Chemical Fire Extinguishers Work?<\/h2>\n
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.<\/p>\n
The mist is fine to not spread the burning oil and works to create a cooling effect and smother the fire.<\/p>\n
What Are the Pros and Cons?<\/h2>\n
Pros<\/h3>\n
This is the sole fire extinguisher appropriate for a fire that involves cooking fat or oil.<\/p>\n
Cons<\/h3>\n
Smoke, vapours, and decomposition products from the fire may remain after use. Adequate ventilation should be provided once the fire is extinguished.<\/p>\n
Who Needs Wet Chemical Fire Extinguishers?<\/h2>\n
Under UK fire safety law, the provision of fire extinguishers must be appropriate to the fire risks identified by a fire risk assessment.<\/p>\n
All premises that have a professional kitchen or fry foods should also have a wet chemical fire extinguisher. Such premises include the following:<\/p>\n
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- Hotel kitchens<\/li>\n
- Restaurants<\/li>\n
- Burger bars<\/li>\n
- Fish and chip shops<\/li>\n<\/ul>\n
How Do You Use a Wet Chemical Fire Extinguisher?<\/h2>\n
Safety Notes:<\/p>\n
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.<\/p>\n
Use the following steps to use a wet chemical fire extinguisher safely:<\/p>\n
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- Remove the safety pin to break the anti-tamper seal and stand at a safe distance<\/li>\n
- If it is safe to do so, switch the heat source off (for instance, the stove or the chip pan)<\/li>\n
- 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.<\/li>\n
- Use circular motions to gently spray so that the foam will settle and form a surface on top of the fire<\/li>\n
- Keep spraying so that you use up the full contents of the extinguisher. This will minimize the risk of the fire re-igniting<\/li>\n<\/ul>\n
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