FIRE EXTINGUISHER

Dry Powder Extinguishers

These extinguishers filled with dry powder may be of the gas pressure or stored air pressure type. They are suitable for use on both Type 2 and Type 3 kind of fires.

Foam Extinguishers

These are of two main types commonly called mechanical foam and chemical foam type of fire extinguishers. They are effective against Type 2 kind of fires.

Carbon Dioxide Type Fire Extinguishers

These are filled with the carbon dioxide. It is operated by means of a plunger, lever trigger or by opening a valve. It is fitted with a distinctively shaped discharge horn. This type of fire extinguisher has only limited effectiveness against Type 1 kind of fires but is suitable for extinguishing type 2 and 3 kinds of fires.

Water Filled Fire Extinguishers

The soda acid kind is the most common kind of water extinguishers. They are most suitable for extinguishing  fire for type 1.

Vaporizing Liquid Type Fire Extinguishers

They may be filled with either carbon tetrachloride (CTC.) or chlorobromethane (CBM). Where CTC kinds of extinguishers may be of the pump, gas cartridge or stored pressure type and CBM may be either gas cartridge or stored pressure. These extinguishers are most effective against electrical kind of fire (Type 3).

Stored Air Pressure Type Extinguishers

In stored air pressure type extinguishers, the container is pressurized with air when the extinguisher is filled. The extinguisher is trigger operated and operation can be stopped at any time by releasing the trigger grip. It is suitable for type 1 kind of fire only.

Gas Pressure Type Extinguishers

In gas pressure type extinguishers the water is expelled under pressure provided by carbon dioxide gas released from cartridge filled inside the container. It is suitable for Type 1 kind of fire.