A storage tank farm 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 storage tank farm fails. This page gives the schedule used in the PlantOps360 task library for storage tank farm (: floating-roof tank, gauging and foam pourers), which follows common industry practice for general-purpose equipment. It is also searched for as floating roof tank, tank farm, tank gauging, ATG.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Storage tank farm preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Daily | Check tank level and temperature, roof drain and dyke area for leaks | 10 min |
| Weekly | Check roof position, seal condition, foam dam and roof ladder | 20 min |
| Monthly | Check gauging system (radar or servo), high-level alarms and vent valves | 45 min |
| Quarterly | Check earthing, shunts, roof bonding and foam pourers | 90 min |
| Half-yearly | Check mixers, heaters, roof drain valves and the sump | 150 min |
| Annual | Annual shell, roof and foundation visual inspection; formal external inspection at the API 653 interval | 480 min |
Storage tank farm maintenance frequency and yearly workload
At the estimated times, one storage tank farm needs about 106 hours of preventive maintenance a year. The biggest single job is “Annual shell, roof and foundation visual inspection; formal external inspection at the API 653 interval” at 480 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 |
|---|---|---|---|
| Daily | 1 | 10 min | 60.8 h |
| Weekly | 1 | 20 min | 17.3 h |
| Monthly | 1 | 45 min | 9.0 h |
| Quarterly | 1 | 90 min | 6.0 h |
| Half-yearly | 1 | 150 min | 5.0 h |
| Annual | 1 | 480 min | 8.0 h |
What goes wrong on a storage tank farm without preventive maintenance
- Roof seal damage and leaks
- Roof drain blockage
- Gauging and high-level alarm faults
- Foam system faults
What to watch between services
- Tank level and roof position
- Roof drain and seal condition
- High-level alarm test
Safety and statutory notes for storage tank farm maintenance
Tank inspection and cleaning follow the codes and licences for flammable liquids, and entry needs a permit and gas testing.
Where a storage tank farm 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
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Browse the full list of equipment preventive maintenance schedules (317 types).
Run this storage tank farm 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 storage tank farm be serviced?
In our schedule a storage tank farm has 6 tasks: 1 daily, 1 weekly, 1 monthly, 1 quarterly, 1 half-yearly, 1 annual. The biggest job is “Annual shell, roof and foundation visual inspection; formal external inspection at the API 653 interval”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in storage tank farm preventive maintenance?
It covers routine checks and jobs such as “Check tank level and temperature, roof drain and dyke area for leaks”, “Check roof position, seal condition, foam dam and roof ladder”, “Check gauging system (radar or servo), high-level alarms and vent valves”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does a storage tank farm need per year?
About 106 hours per unit per year at the estimated times in our library, including the daily checks done every day. Use it to plan workload, not as a benchmark.
Is there a free storage tank farm 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.