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Sprinkler Systems
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Monthly
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Quarterly
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Semi-annual
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Annual
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Other
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NFPA Code
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NFPA
25
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Inspection
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Gauges
- Dry, PreAction & Deluge
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2-2.4.2
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Gauges on dry, preaction, and deluge systems shall
be inspected weekly to ensure that normal air and
water pressures are being maintained.
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Gauges
- Wet Pipe Systems
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2-2.4.1
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Gauges on wet pipe sprinkler systems shall be inspected
monthly to ensure that they are in good condition
and that normal water supply pressure is being maintained.
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Control
Valves
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(See "Valves" below)
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Hydraulic
Nameplate
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2-2.7
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The
hydraulic nameplate, if provided, shall be inspected
quarterly to verify that it is attached securely
to the sprinkler riser and is legible.
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Buildings
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2-2.5
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Annually, prior to the onset of freezing weather,
buildings with wet pipe systems shall be inspected
to verify that windows, skylights, doors, ventilators,
other openings and closures, blind spaces, unused
attics, stair towers, roof houses, and low spaces
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Hangers/Bracing
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2-2.3
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Sprinkler pipe hangers and seismic braces shall
be inspected annually from the floor level.
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Pipe
& Fittings
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2-2.2
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Sprinkler pipe and fittings shall be inspected annually
from the floor level.
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Sprinkler
Heads
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2-2.1.1
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Sprinklers shall be inspected from the floor level
annually.
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Spare
Sprinkler Heads
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2-2.1.3
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The
supply of spare sprinklers shall be inspected annually…
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Valves
(All Types)
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(See "Valves" below)
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Testing
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Main
Drain
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(See "Valves" below)
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Antifreeze
Solution
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2-3.4
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The
freezing point of solutions in antifreeze shall
be tested annually by measuring the specific gravity
with a hydrometer or refractometer and adjusting
the solutions if necessary.
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Gauges
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2-3.2
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Gauges shall be replaced every 5 years or tested
every 5 years by comparison with a calibrated gauge.
Gauges not accurate to within 3 percent of the full
scale shall be recalibrated or replaced.
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Sprinkler
Heads
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2-3.1.1
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Where sprinklers have been in service for 50 years,
they shall be replaced or representative samples
from one or more sample areas shall be submitted
to a recognized testing laboratory acceptable to
the authority having jurisdiction for field service
test
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Sprinkler
Heads - Extra High Temp
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2-3.1.1
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Exception No. 3*: Representative samples of solder-type
sprinklers with a temperature classification of
extra high [325°F (163°C)] or greater that are exposed
to semicontinuous to continuous maximum allowable
ambient temperature conditions shall be tested
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Sprinkler
Heads - Fast Response
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2-3.1.1
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Exception No. 2: Sprinklers manufactured using fast
response elements that have been in service for
20 years shall be tested. They shall be retested
at 10-year intervals.
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Maintenance
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Valves
(All Types)
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(See "Valves" below)
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Obstruction
Investigation
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10-2.2
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Systems shall be examined internally for obstructions
where conditions exist that could cause obstructed
piping. If the condition has not been corrected
or the condition is one that could result in obstruction
of piping despite any previous flushing procedures.
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Valves
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Monthly
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Quarterly
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Semi-annual
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Annual
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Other
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Inspection
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Control
Valves
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9-3.3.1
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All
valves shall be inspected weekly.
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Alarm
Valves
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9-4.1.1
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Alarm valves shall be externally inspected monthly.
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Check
Valves
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9-4.2.1
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Valves shall be inspected internally every 5 years
to verify that all components operate properly,
move freely, and are in good condition.
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Preaction/Deluge
Valves
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9-4.3.1.3
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The
interior of the preaction or deluge valve and the
condition of detection devices shall be inspected
annually when the trip test is conducted.
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Dry
Pipe Valves/Quick Opening Devices
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9-4.4.1.4
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The
interior of the dry pipe valve shall be inspected
annually when the trip test is conducted.
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Backflow
Prevention Assemblies
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9-6.1.2
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All
backflow preventers installed in fire protection
system piping shall be tested annually…
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Testing
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Main
Drain
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9-2.6
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A
main drain test shall be conducted quarterly at
each water-based fire protection system riser to
determine whether there has been a change in the
condition of the water supply piping and control
valves.
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Waterflow
Alarm
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9-2.7
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All
waterflow alarms shall be tested quarterly in accordance
with the manufacturer’s instructions.
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Control
Valves
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9-3.4.1
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Each control valve shall be operated annually through
its full range and returned to its normal position.
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Preaction/Deluge
Valves
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9-4.3.2.2
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Each deluge or preaction valve shall be trip tested
annually at full flow in warm weather and in accordance
with the manufacturer’s instructions.
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Dry
Pipe Valves/Quick Opening Devices
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9-4.4.2.1
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Each dry pipe valve shall be trip tested annually
during warm weather.
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Backflow
Prevention Assemblies
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9-6.2.1
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All
backflow preventers installed in fire protection
system piping shall be tested annually…
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Maintenance
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Control
Valves
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9-3.5
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The
operating stems of outside screw and yoke valves
shall be lubricated annually.
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Preaction/Deluge
Valves
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