Everything you need to know about Class K Fire Extinguishers.

Fire safety is a critical aspect of any environment, whether it’s a residential space, commercial kitchen, or industrial setting. In this post, we’ll delve into the details of Class K fire extinguishers, exploring their importance, functionality, and proper usage.

What is a Class k Fire extinguisher?

A Class K or wet chemical fire extinguisher is one specially designed to put out Class K fires. Class K fires are those fueled by flammable cooking liquids like cooking oil, animal fat or vegetable grease. These fires often burn hotter than your typical fire which makes putting them out with a standard ABC Extinguisher ineffective. Given the nature of class k fires they are most likely to start in commercial kitchens and other food related businesses. These businesses are required to have a class k fire extinguisher on hand as a backup to the emergency fire suppression system.

How does a Class k Fire extinguisher work?

A wet chemical fire extinguisher works through a process called saponification. The extinguisher contains a liquid alkaline mixture of potassium acetate which sprays out as a wet mist. When introduced to the cooking oils it creates a soapy foam that smothers the flames and stops the fire from reigniting.

Where should you place a class k fire extinguisher?

These wet chemical fire extinguishers are required to be installed within 30 feet of a cooking line. It is important for them to be visible and in a designated place so they can be accessed quickly in case of emergency.

What is the right way to use a Class k Fire extinguisher?

When dealing with a Wet Chemical fire extinguisher we can use the P.A.S.S technique:

·  Pull the pin to break the tamper seal.

·  Aim the nozzle or hose at the base of the fire from a safe distance.

·  Squeeze the handle to release the extinguishing agent.

·  Sweep the nozzle from side to side, covering the area of the fire until it is completely extinguished.

If the fire is too large to control evacuate the area and call the fire department.

How to maintain a Class K Fire extinguisher?

It is vital to properly maintain the extinguisher, which includes having it inspected regularly. These extinguishers should be inspected by a licensed professional once a year. They also need to be recharged once every 5 years and replaced every 12 years.

It is important to keep your extinguisher at room temperature as liquid contents can damage the interior if they freeze.

Can I use a different extinguisher for a kitchen fire?

Using an ABC or other classes of fire extinguisher on a class K fire is dangerous and could exacerbate the issue. The agents other extinguishers use are not specially formulated for kitchen fires and could cause the oils to splash spreading the fire. They are also not equipped to stop the reaction happening in these fires which could lead the fire to reignite.

Class K fire extinguishers are an indispensable tool in any kitchen environment, providing a safe and effective means of tackling grease and oil fires. Understanding their functionality, proper usage, and maintenance can make a significant difference in fire safety. Ensure your kitchen is equipped with a Class K fire extinguisher and that everyone in the vicinity is trained on how to use it effectively. Safety in the kitchen starts with the right tools and knowledge

For More tips on how to use a class k fire extinguisher watch this helpful video from Amerex.