Sprinkler and standpipe inspections, by interval

In the United States, water-based fire protection systems are inspected, tested and maintained under NFPA 25. The standard puts the responsibility on the property owner, and splits the work across intervals from weekly to every five years. Most buildings contract the long-interval work and quietly skip the short-interval work, which is the part the owner is meant to do.

The shape of the schedule

Exact frequencies depend on the system type, the components fitted and what the local authority requires. This is the general shape for a common wet system.

• •Weekly or monthly: control valves in the correct position and locked or supervised, gauges reading normally
• •Monthly: gauges on dry, pre-action and deluge systems
• •Quarterly: alarm devices, waterflow alarms, supervisory signals, hydraulic nameplates, fire department connections
• •Annually: sprinklers, pipe and fittings, hangers and bracing, spare sprinkler cabinet, main drain test, antifreeze solutions where fitted
• •Every five years: internal pipe inspection for obstruction, gauges replaced or tested, standpipe hydrostatic testing where applicable

The owner tasks are the ones that get missed

A quarterly contractor visit does not cover a weekly valve check. Those short-interval items belong to somebody in the building, and in most buildings nobody has been told they own them. Put them on the maintenance schedule as ordinary rounds, with photographs of the valve positions.

Closed valves are the classic failure

The most common reason a sprinkler system does not work is that a control valve was closed and never reopened, usually after work on the system. That is exactly what the frequent valve check exists to catch, and it is why locks, supervision and a recorded position matter more than they sound.

Read the contractor’s report, and track the findings

An inspection report with deficiencies listed is not compliance until the deficiencies are closed. Reports arrive, get filed, and the recommendations sit there for years. Every deficiency in a fire protection report should become tracked work on the day the report arrives.

Keep the records where they will be asked for

The standard requires records to be kept by the owner and made available. Keep them attached to the building, with dates and the name of whoever did the work, and keep the previous cycle rather than only the current one. Trends in impairments and deficiencies are what an insurer looks at.

Impairments need a procedure

When a system is out of service, whether planned or not, there is a defined procedure: tag it, notify who needs to know, arrange interim protection and restore it as soon as possible. Most buildings handle a planned impairment well and an emergency one from memory at eight in the evening. Write the emergency version down before you need it.

This page describes the United States standard. Other countries have their own regimes for the same equipment.