A foam fire-fighting system preventive maintenance schedule lists the checks and jobs done on the equipment at fixed intervals, how long each takes, and in what order of frequency, so problems are found before the foam fire-fighting system fails. This page gives the schedule used in the PlantOps360 task library for foam fire-fighting system (foam tank, proportioner, foam makers), which follows common industry practice for general-purpose equipment. It is also searched for as AFFF, foam concentrate, foam proportioner, foam chamber.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Foam fire-fighting system preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Monthly | Check foam tank level and the condition of the foam pump and proportioner | 30 min |
| Quarterly | Check foam chambers, makers and strainers for blockage; operate the valves | 60 min |
| Half-yearly | Check foam concentrate condition and send a sample for analysis as per the supplier | 90 min |
| Annual | Proportioner test with a sample from the discharge; foam expansion and drainage test | 240 min |
| Annual | Flush the foam lines and nozzles; test the foam pump and controller | 120 min |
Foam fire-fighting system maintenance frequency and yearly workload
At the estimated times, one foam fire-fighting system needs about 19 hours of preventive maintenance a year. The biggest single job is “Proportioner test with a sample from the discharge; foam expansion and drainage test” at 240 minutes, done annual. Multiply by the number of units you have to see the workload for your plant.
| Frequency | Tasks | Time per round | Hours per year |
|---|---|---|---|
| Monthly | 1 | 30 min | 6.0 h |
| Quarterly | 1 | 60 min | 4.0 h |
| Half-yearly | 1 | 90 min | 3.0 h |
| Annual | 2 | 360 min | 6.0 h |
What goes wrong on a foam fire-fighting system without preventive maintenance
- Foam concentrate degradation
- Strainer and chamber blockage
- Proportioner faults
- Pump and valve faults
What to watch between services
- Foam tank level and concentrate sample
- Proportioner function
- Chambers and strainers
Safety and statutory notes for foam fire-fighting system maintenance
Foam concentrate needs periodic laboratory testing. Keep sample results with the asset.
Where a foam fire-fighting system preventive maintenance schedule is used
This equipment is used in the industries below. Each link opens the preventive maintenance schedule guide for that industry, and the maintenance software page where we have one.
- Preventive maintenance schedule for chemical, fertiliser and petrochemical plants · maintenance software for chemical
- Preventive maintenance schedule for oil, gas and refinery facilities · maintenance software for oil and gas
- Preventive maintenance schedule for thermal and hydro power plants · maintenance software for power plants
- Preventive maintenance schedule for warehouses, logistics and ports
- Preventive maintenance schedule for railways, metro, airports and depots
Related equipment maintenance schedules
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- Portable fire extinguisher preventive maintenance schedule
- Fire detection and alarm system preventive maintenance schedule
- Gaseous fire suppression system preventive maintenance schedule
- Emergency light and exit sign preventive maintenance schedule
- Emergency eyewash and safety shower preventive maintenance schedule
Browse the full list of equipment preventive maintenance schedules (317 types).
Run this foam fire-fighting system schedule in maintenance software
In preventive maintenance software, each row above becomes a recurring task on the asset with its checklist, time estimate and parts. Tasks can be triggered by calendar date, running hours, meter readings or production cycles, each completed task is recorded with the person and date, and a failed check can open a work order. For the method behind it, read the guide to the preventive maintenance schedule, or use the free generator to get a 12-month plan for your whole equipment list.
Build my preventive maintenance schedule (free Excel)
Frequently asked questions
How often should a foam fire-fighting system be serviced?
In our schedule a foam fire-fighting system has 5 tasks: 1 monthly, 1 quarterly, 1 half-yearly, 2 annual. The biggest job is “Proportioner test with a sample from the discharge; foam expansion and drainage test”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in foam fire-fighting system preventive maintenance?
It covers routine checks and jobs such as “Check foam tank level and the condition of the foam pump and proportioner”, “Check foam chambers, makers and strainers for blockage; operate the valves”, “Check foam concentrate condition and send a sample for analysis as per the supplier”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does a foam fire-fighting system need per year?
About 19 hours per unit per year at the estimated times in our library, including all scheduled rounds. Use it to plan workload, not as a benchmark.
Is there a free foam fire-fighting system maintenance checklist?
Yes. The table on this page is a ready checklist. The free preventive maintenance schedule generator turns it into a 12-month Excel schedule for your list of equipment, with monthly workload hours.