What is the maintenance schedule for wet chemical fire extinguishers?

The maintenance schedule for wet chemical fire extinguishers, which are primarily used for Class K fires such as those involving cooking oils and fats, involves a thorough inspection and servicing every five years. This is aligned with the National Fire Protection Association (NFPA) guidelines, which specify that certain types of fire extinguishers, including wet chemical extinguishers, must undergo more detailed maintenance to ensure they function properly in case of an emergency.

During these five-year services, technicians will check the pressure gauge, inspect for any physical damage, and perform a variety of tests, including checking the discharge nozzle to ensure it is functioning correctly. Regular maintenance is crucial for ensuring that these extinguishers can successfully extinguish fires when needed. Following this schedule keeps the extinguishers compliant with safety standards and helps ensure safety in environments where such fires are a risk.

The options suggesting annual, biennial, or decadal maintenance schedules do not reflect the specific requirements for wet chemical extinguishers. While annual inspections are recommended to visually check the condition of the extinguisher, the comprehensive maintenance is mandated every five years.