Suppliers of Fire
Extinguishers
At MacDonald Martin we supply all the main types of fire extinguishers. We are always pleased to work with new clients, understanding their fire safety needs. A huge part of a fire protection strategy is to have the correct fire extinguisher installed in an area where it would be most effective. We encourage you to get in touch through our contact page for an informed approach to fire extinguisher strategies.
The UK recognizes five fire classes. Class A fires involve organic solids such as paper and wood. Class B fires involve flammable liquids. Class C fires involve flammable gases. Class D fires involve metals, Class F fires involve cooking fat and oil. Fire extinguishing capacity is rated by fire safety class using numbers and letters such as 13A, 55B.
Here at MacDonald Martin, we know it is top priority for your fire protection to have the equipment for an emergency lighting system, should the basic system fail.
Water Extinguishers
- Suitable for Class A fires
- Available stored pressure or cartridge
- Highest fire ratings
Dry Powder Extinguishers
- Suitable for class A, B, C and Electrical fires.
- Stored pressure – Visual check
- All purpose extinguisher
Wet Chemical Extinguishers
- Suitable for class A and F fires (highest class F rating (75°F))
- Compact and easy to use
- The only extinguisher to deal efficiently with cooking oil fires
Foam Fire Extinguishers
- Suitable for class A, B, C and Electrical fires.
- Compact design
- High power/weight ratio
Co2 Fire Extinguishers
- Suitable for class B and electrical fires
- Compact design
- High fire ratings (5kg)
- Quality finish
Mobile Fire Protection Extinguisher Units
MacDonald Martin Limited can supply Mobile Trolley Units for maximum flexibility.Available in a range of capacities from 25kg to 130litres in Co², Powder and Foam.
Classification Of Fires
Class A: Fires involving ordinary combustible materials, such as paper, wood, and textile fibers, where a cooling, blanketing, or wetting extinguishing agent is needed.
Class B: Fires involving flammable liquids such as gasoline, thinners, oil-based paints and greases. Extinguishers for this type of fire include carbon dioxide, dry chemical* and halogenated agent types.
Class C: Fires involving energized electrical equipment, where a nonconducting gaseous clean agent or smothering agent is needed. The most common type of extinguisher for this class is a carbon dioxide exinguisher.
Class D: Fires involving combustible metals such as magnesium, sodium, potassium, titanium, and aluminum. Special dry powder* extinguishing agents are required for this class of fire, and must be tailored to the specific hazardous metal.
Class F: Fires involving commercial cooking appliances with vegetable oils, animal oils, or fats at high temperatures. A wet potassium acetate, low pH-based agent is used for this class of fire.
*Please take care not to confuse dry chemical extinguishers with dry powder extinguishers. Dry powder extinguishant will cake and form an exterior crust when heated by the fire. The crust formed will exclude air from the chemical reaction, resulting in extinguishment of the fire, and dissipating heat. A regular dry chemical extinguisher will simply blanket the burning material, interrupting the chemical reaction at the fuel's surface.
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