Water Fire Extinguisher

Water Fire Extinguisher Suitable For Class A FiresThe most popular and low-cost type of extinguisher is the water extinguisher. Water cools and extinguishes the fire, making it the easiest and most simple solution to eliminate a fire. They are the perfect solution for dealing with Class A fires involving paper, burning wood, textiles and general combustible materials due to the water soaking into the materials. Another plus is that they are environmentally friendly as they don’t contain any residual agents or hazardous chemicals.

Water extinguishers are distinguished with a red label which is not to be mislead with the standard red colour on the body of virtually all other types extinguisher. They are available in a number of sizes, with the 9 litre model being the standard size. There are also more compact sizes such as the standard 3 litre model which uses an additive.

Additives within water extinguishers are being used more frequently due to their increased fire fighting ability. They use an eco-friendly additive which significantly improves its efficiency and rating so its effective in tackling bigger fires. This enables a 3 litre water additive extinguisher to have the same fire fighting capacity as the basic 9 litre water extinguisher.

The main downside to additives is they tend to be costly to refill in comparison with the standard water extinguishers. Also if using long term, It might restrict you to one manufacturer such as Chubb Hydrospray.

Water fire extinguishers are quite restricted to controlling solid combustibles, like wood, paper and textiles. It’s also prone to freeze at low temperatures. In fact even using a low freeze additive, it can still only be used in temperatures as low as -10°C.

These extinguishers are commonly used in places such as restaurants, public events, hotels, industrial units and schools.

How It Works?

Water fire extinguishers cools and quenches the fire. It soaks up the heat and decreases the temperature required to maintain the fire.

Features & Benefits

✓ Fantastic fire fighting performance
✓ Inexpensive to buy and refill
✓ Minimal space required
✓ Extremely good surface penetration and cooling qualities
✓ Eco-friendly Medium

What’s Suitable?

They are suitable for Class A fires which is caused by the combustion of solid materials like wood, paper, straw,  coal and textiles.

The Risks

If used on other classes of fire, they can make the fire spread and cause danger to the user which makes them only suitable for Class A fires. Water extinguishers must not be used on classes B,C,D,F and electrical fires.

If used to try and control Class B liquid fires such as oil, petrol and paint fires, it makes them extremely volatile. Also when used on Class D metal fires, it can release explosive hydrogen.

They are also unsuitable for electrical fires and everywhere electricity is active unless the power source can be disconnected first. If used on live electrical equipment, it presents an electrocution risk to the user as water conducts electricity.