wet chemical FIre Extinguishers

We’ve been supplying and servicing fire extinguishers for over 50 years.

Wet Chemical Fire Extinguishers: Everything You Need to Know

According to the National Fire Protection Association, cooking is the leading cause of domestic fires and fire related injuries. Kitchen fires account for more than $1 billion in property damage each year. The easiest way to prevent kitchen fires from happening is by being aware of the dangers, take precautions and invest in fire safety equipment such as fire extinguishers and blankets.

Wet chemical fire extinguishers are essential. Extremely effective, wet chemical extinguishers are able to tackle kitchen and restaurant fires with ease.

On this page, we will discuss:

  • What is a wet chemical extinguisher?
  • How to use wet chemical fire extinguishers
  • What fuel can a wet chemical fire extinguisher be used on?
  • What is the wet chemical compound made from?
  • Where are wet chemical extinguishers commonly used?

Do I need fire extinguishers for my business?

Any business with 5 or more employee’s needs a Fire Risk Assessment completing by law. Your fire risk assessment will outline the types of extinguishers your business needs depending on the potential risks.

If you’re still unsure book a free, no obligation consultation with one of our Fire Protection Consultants. They’ll be able to advise you on what you need to protect your business.

What is a Wet Chemical Fire Extinguisher?

In the event of a restaurant or commercial kitchen fire, we recommend the use of both an extinguisher and blanket to control flames. Wet chemical fire extinguishers are a type of Class F fire protection device designed to extinguish fires that involve cooking oils and fats.

The long hose, rigid nozzle and portability of a wet chemical fire extinguisher makes it possible to contain fires from safe distances.

What Fuel Can a Wet Chemical Fire Extinguishers be Used on?

A versatile tool, the wet chemical fire extinguisher can be used on a multitude of fire classifications. Class F fires are its specialty, but it also has the ability to put out Class A flames with ease! Class A fires are those that involve combustible materials such as wood, paper or cloth.

It is important to note that this extinguisher type CANNOT be used on electrical, liquid or gas fires.

Where are Wet Chemical Extinguishers Commonly Used?

  • Kitchens
  • Restaurants
  • Hospitals
  • Hotels
  • Schools
  • Food supply chains
  • Retail

What Colour is a Wet Chemical Fire Extinguisher

Conforming to strict UK standards, the wet chemical fire extinguisher is painted with a rich red colour known as ‘signal red’ and has a yellow label with red writing. The use of red is due to its association with danger and fire along with the fact it’s easier to see in darker/smoke filled environments.

    How to Use Wet Chemical Fire Extinguisher

    • Check that the extinguisher is fully charged.
    • Turn off any heat sources if safe to do so.
    • Remain a safe distance from the flame.
    • Remove the safety pin.
    • Positioning the nozzle at least 1 metre away from the fire, hold the lance at arm’s length.
    • Slowly begin discharging the extinguisher by squeezing the lever.
    • Use slow, circular movements to encourage the wet chemical agent to gently fall onto the surface of the fire (This will help avoid hot oil splashes).
    • Discharge the entire contents of the extinguisher to help avoid reignition.

      What Type of Wet Chemical is Used?

      A wet chemical fire extinguisher is a safe and effective way to put out hot oil fires. When operated, these extinguishers create fine mist which cools the flames while preventing splashing back onto you or anyone else in close proximity.What type of wet chemical is used? The mist is created using an ingredient known as potassium acetate which will often be combined with either potassium citrate or potassium bicarbonate.

      How do Wet Chemicals Extinguish Fire?

      Potassium salts provide a saponification effect which smothers the fuel with a thick, soapy foam. Once the wet chemical is discharged, the surface of the oil will become an endothermic, non-combustible soap.

      Simply put, the top layer of foam will absorb the heat energy and will not be capable of reignition.

      Saponification is the chemical process of converting fat or oil into soap and alcohol. This occurs by the action of aqueous alkali.

      Other Services

      Fire Alarms

      Our team of accredited experts will assess your premises and design a system suited for your requirements and budget. 

      Emergency Lighting

      A correctly designed and well maintained emergency lighting system could prove vital for your staff in the event of a fire. 

      Fire Suppression Systems

      Our uniquely designed systems are one of the most effective ways to protect your business from fire.