Fire Extinguisher Refill, Recharge & Maintenance

Fire Extinguisher Recharge

Any time a fire extinguisher has been used a refill should be performed to ensure that it will work at its peak efficiency the next time it is needed. A fire extinguisher recharge is more than just simply refilling it, so trust the experts at Service Fire Equipment to handle all of your recharge and maintenance needs.

Any time you operate a fire extinguisher, you have changed the pressure in the device and therefore a thorough inspection needs to be performed as part of the recharge process.

Fire Extinguisher Refill

The first step is to clean the external tank, the nozzle, and all operational parts. Next we need to preform a leak test before we do anything else. A simple test for checking for leaks is to submerge the whole extinguisher in water to see if any bubbles appear indicating a leak. Finally, we need to check for wear and tear, brittle o-rings, and any kind of a clogging issue that could impact a successful recharge.

At this point we are ready to refill the device with the correct extinguishing agent. The class of fire extinguisher determines if it will be refilled with water or a powder agent. After the unit has been refilled, it must be pressure tested for any leaks to ensure the unit will work properly.

Fire Extinguisher Maintenance

A visual inspection alone cannot insure that a portable fire extinguisher is safe or will operate properly when needed. Over time, normal handling or workplace conditions can impact the structural integrity of the extinguisher and cause it to malfunction or burst. To prevent this from happening, portable fire extinguishers are required to have six-year maintenance, as well as hydrostatic tests.

  • Six-Year Maintenance – Every 6 years, stored-pressure fire extinguishers that require 12-year hydrostatic tests should be emptied and subjected to the applicable internal and external examination procedures detailed in the manufacturer’s service manual [NFPA 10(18) Sec. 7.3.6].
  • Hydrostatic Test - All portable fire extinguishers are required to be inspected and pressure tested by a qualified individual using the proper equipment and facilities. Hydrostatic testing is the method used to pressure test an extinguisher's critical components (cylinder, shell, hose assembly, etc.) for leaks and structural flaws by pressurizing them with a liquid. [Osha 1910.157(f)(1)] Most dry chemical fire extinguishers require this to be done every 12 years.

For more information please contact us.