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All Fire Services LLC.

2100 West Front Street

Statesville, NC 28677

Fire Extinguishers

Fire extinguishers are your first line of defense against a small fire. They are commonly kept in corridors and breezeways, kitchens, work vehicles, or anywhere hazardous chemicals are stores or used.  AFS technicians are licensed to performs routine inspection, testing, and maintenance. We keep your extinguishers serviced so they will always be ready when you need them most!

  • Annual Inspections- The NFPA-10 and your local jurisdiction require fire extinguisher inspections as detailed under regulatory requirements.

 

  • 6 Year Maintenance- The extinguisher is broken down and checked for damage. The "O" ring and gaskets are replaced and extinguisher is recharged.

 

  • Hydro Test- Every 12 years, from the date of manufacturing, the extinguisher is broken down and emptied. The cylinder is then tested for defects. If the cylinder passes it is recharged and put back in service. This is required every 5 years for CO2, water, and K class extinguishers.

The 3 essential elements for a fire are: extreme heat, oxygen, and a "fuel". Fire is the result of a chemical combustion reaction which is typically the oxygen in the air and some sort of "fuel" (wood, clothing, gasoline, etc.).  For the combustion to happen, the "fuel" has to be heated to it's ignition temperature. This can happen from a number of different things: something already burning, focused light, or friction. 

 

Fire extinguishers are designed to remove at least 1 of the essential elements so that the fire will die out. Most fire extinguishers are made to remove the oxygen.

 

"Dry chemical" Fire Extinguishers are typically filled with Mono ammonium phosphate, also known as "tri-class", "multipurpose" or "ABC" dry chemical, used on class A, B, and C fires. It receives its class A rating from the agent's ability to melt and flow at 177 °C (350 °F) to smother the fire. More corrosive than other dry chemical agents. Pale yellow in color. These are the most common of the fire extinguishers.

 

There is no official standard in the United States for the color of fire extinguishers, though they are typically red, except for class D extinguishers, which are usually yellow, and water, which are usually silver, or white if water mist. Extinguishers are marked with pictures depicting the types of fires that the extinguisher is approved to fight. In the past, extinguishers were marked with colored geometric symbols, and some extinguishers still use both symbols. The types of fires and additional standards are described in NFPA-10: Standard for Portable Fire Extinguishers, 2010 edition.