Class D fires involve combustible metals such as magnesium or titanium. These fires burn at very high temperatures and may react violently to water or other chemicals.

Class K This class deals with the commercial cooking industry because it is concerned with combustible cooking oils or fats, grease, and oils.

Extinguisher

There are many different types of fire extinguishers available, each designed to protect against certain fires. Smiths Fire services and sells all types of fire extinguishers for any hazard.  Call or visit our office our knowledgeable staff will be happy to assist you in determining what type of portable fire extinguisher is right for you. The following information will also help you better understand the different classes and types.

Dry Chemical
Dry chemical fire extinguishers are usually rated for multi-use, and have more than one designator (A-B, B-C, or A-B-C, etc.). It is important to have the correct dry chemical fire extinguisher as each is filled with a different chemical. A general purpose fire extinguisher with a rating A-B-C is usually suitable for most homes, and many businesses, depending on the particular hazard. The advantage to dry chemical is that they leave a blanket of residue over the fire preventing reigniting.
Specifications - MSDS Information

Wood, Paper, Oils & Electrical Fires
(Starting at $34 - Depending On Size)
Prices vary depending upon quantity ordered
 

Carbon dioxide
CO2 fire extinguishers are used for class B and C fires. They work by displacing the oxygen in a given area, suffocating and cooling the fire. These extinguishers should not be used on class A fires because they may reignite. They also should not be used on class D fires as reaction may occur. The advantage to using carbon dioxide is that is does not leave behind any harmful residues, making it suitable for fires involving delicate electronic equipment.
Specifications - MSDS Information

Oils & Electrical Fires
(Starting at $135 - Depending On Size)
Prices vary depending upon quantity ordered
 

Clean Agent
Clean agent fire extinguishers are ideal for protecting valuable electrical equipment, such as computer rooms, communication equipment, and data storage facilities because they leave no residue. These fire extinguishers replace Halon 1211 with environment friendly chemicals.
Specifications - MSDS Information

Wood, Paper, Oils & Electrical Fires
(Starting at $115 - Depending On Size)
Prices vary depending upon quantity ordered
 

Water Extinguishers
Pressurized water type fire extinguishers are suitable for class A fires, but not for class B, C and D fires. These types of fires can react or spread, becoming more of a hazard.
Specifications - MSDS Information

Wood, Paper  Fires
(Starting at $72)
Prices vary depending upon quantity ordered
 

Kitchen and Class A Fires
(Starting at $159 - Depending On Size)
Prices vary depending upon quantity ordered

Other Fire Extinguishers Available

Foam Extinguishers
purple K Extinguisher
Water Mist Extinguishers
Class D Extinguishers
Halotron Extinguishers
Wheeled Extinguishers 

WHAT TO DO AFTER USING AN EXTINGUISHER

After an extinguisher has been used, even just a little bit, you must report it to the Fire Prevention Office so that it can be recharged or replaced. While CO2 and halon extinguishers will generally hold their pressure after a slight discharge, BC and ABC rated DRY CHEMICAL extinguishers will usually NOT hold a charge after partial use. While the gauge may hold steady in the green immediately after a light use, check it the next day and you'll find the gauge on EMPTY! This is because upon use the dry powder gets inside the seals and allows the nitrogen carrier gas to escape over a period of time. You can't "test" an extinguisher and put it back in the cabinet! Any discharge must be reported and the extinguisher recharged or replaced!!!