Fire Fighting Services

Fire Extinguisher Maintenance

Fire extinguisher maintenance is important for everyone’s safety.

You must ensure that:

  • The extinguisher is not blocked by equipment, coats or other objects that could interfere with access in an emergency.
  • The pressure is at the recommended level. On extinguishers equipped with a gauge (such as that shown on the right), the needle should be in the green zone – not too high and not too low.
  • The nozzle or other parts are not hindered in any way.
  • The pin and tamper seal (if it has one) are intact.
  • There are no dents, leaks, rust, chemical deposits and/or other signs of abuse/wear. Wipe off any corrosive chemicals, oil, gunk etc. that may have deposited on the extinguisher.

Some manufacturers recommend shaking your dry chemical extinguishers once a month to prevent the powder from settling/packing.

Fire extinguishers should be pressure tested (a process called hydrostatic testing) after a number of years to ensure that the cylinder is safe to use. Consult your owner’s manual, extinguisher label or the manufacturer to see when yours may need such testing.

An inspection of fire extinguisher is a “quick check” to give reasonable assurance that a fire extinguisher is available, fully charged and operable. The value of an inspection lies in the frequency, regularity, and thoroughness with which it is conducted. The frequency will vary from hourly to monthly, based on the needs of the situation. Inspections should always be conducted when extinguishers are initially placed in service and thereafter at approximately 30-day intervals.

Fire extinguishers should be maintained at regular intervals (at least once a year), or when specifically indicated by an inspection. Maintenance is a “thorough check” of the extinguisher. It is intended to give maximum assurance that an extinguisher will operate effectively and safely. It includes a thorough examination and any necessary repair, recharging or replacement. It will normally reveal the need for hydro static testing of an extinguisher.

Fire Pump & Fire Hydrant Maintenance

Like all other fire protection systems, fire pumps can lose their effectiveness if they are not properly maintained. Fire pumps are especially at risk for failure because they are so complex and are especially vulnerable to things like corrosive environments, tampering, accidental damage, and careless use.

Since fire pumps are typically kept out of the way and (hopefully) are not used very often, fire pump inspection is extremely important to ensure the pumps will respond the way they are supposed to. At Aissol Fire Protection Services, our annual fire pump inspection services include:

Shaft Alignment

One of the most crucial steps of a fire pump inspection is making sure your fire pump’s driveshaft is aligned properly. There are many factors that can affect alignment, including thermal expansion and equipment maintenance. Packing glands are also inspected and adjusted as necessary to allow for the shaft to move freely.

Circulation Relief Valve Inspection

Circulation relief valves are usually mounted on the neck of the discharge flange, and they prevent the fire pump from overheating when the pump is operating at shutoff condition. The valve should be inspected weekly and should discharge to a drain. Visual inspection of the fire pump is critical because if the valve fails to operate, the fire pump could overheat at a time when it is needed most.

Bypass Loop Inspection

Bypass loops are required because they provide water supply at street pressure when the pump is not functioning or being serviced. While they will not be able to give you full pressure, they still allow for water flow throughout the sprinkler

Fire Pump Testing

It is highly recommended that all fire pumps undergo weekly testing at shutoff conditions. Electric fire pump systems should be tested for 10 minutes, while diesel fire pump systems should be tested for 30 minutes. Annual testing is conducted at minimum, rated, and peak load to ensure that the fire pumps will work optimally under all of these conditions. Annually, demand must be placed on the suction supply to test the hose streams and flow meter systems. Aissol licensed technicians will also check the pump controller and current draw of the pump as well as motor rotation and RPM speed.

In addition to annual fire pump inspections, Aissol Fire Protection Services also offers periodic fire pump testing. Weekly fire pump testing at shutoff conditions is recommended (see our blog post about how to exercise a fire pump), and annual fire pump testing at various load levels are a must.

Fire Pump Maintenance

Fire pumps must undergo regular preventative maintenance to ensure they maintain their effectiveness. Aissol Fire Protection Services offers fire pump maintenance services, including lubrication and coupling alignment.

Routine fire pump inspection and maintenance are extremely important to ensuring your fire protection system will keep your building safe from fire at all times.