Different types of extinguishers put out different types of fires and use different extinguishing agents. Northwest Fire Systems will determine which extinguisher is proper for your facilities based on your specific fire risks.
Multipurpose – Will be labeled ABC and can be used on all 3 fire classes.
Pressurized Water Extinguishers – These fire extinguishers are meant to be used for for Class A fires and should never be used to put out flammable liquid or electrical fires.
Ammonium Phosphate Extinguisher – These can be used to extinguish Class A, B, and C fires. However, these should never be used in a commercial grease fryer, because it may reduce the fire fighting power of the automatic fire protection system.
Carbon Dioxide – These are rated to fight Class B and C fires. No residue is left behind after use.
Dry Chemical Extinguishers – These types interrupt the reaction of chemicals which create a fire, thereby extinguishing the fire.
Sodium Bicarbonate – these are used for class B and C fires. When extinguishing grease fires, this type is preferable to use when compared to the other dry-chemical fire extinguishers.
Potassium Bicarbonate, potassium chloride, urea-base potassium bicarbonate – these dry chemical fire extinguishers use less fire fighting agent than sodium bicarbonate on similar fires. FFFP, AFFF, or foam extinguishers cover the burning materials so that the fire cannot get air as fuel to feed the flames.