extinguishment. Areas larger than 279 sq meters
3,000 square feet and all deluge systems must be
hydraulically designed for uniform distribution.
Assure that up to date reliable hydraulic data is
used in design of the project. Do not show
sprinkler piping layout and heads on project
drawings. System requirements must conform to the
current edition of Unified Facilities Criteria (UFC)
3-600-01 Design: Fire Protection Engineering for
Facilities.
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NOTE: If there are questions concerning type of
foam systems required, consult the Engineering Field
Division, Naval Facilities Engineering Command.
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NOTE: The following information shall be shown on
the project drawings:
1. Location and detail of each foam system supply
riser, deluge, or pre-action valve, water motor
alarm, fire department inlet connection, foam
hydrant, hand hose station, monitor nozzle, air
compressor(s), and associated electrical connections.
2. Point of connection to the existing water
distribution system.
3. Location of foam system control valves and post
indicator valves.
4. Area(s) of foam system coverage, with zone
designations (if multiple zones). Do not show
piping layout.
5. Location and design of draft curtains as
required by NFPA 409 for aircraft hangar.
6. For pipe larger than 305 mm 12 inches, detail
methods of anchoring pipe including pipe clamps and
tie rods.
7. Location of foam proportioning equipment and
storage tank.
8. Show locations of control panel, annunciator(s),
alarm devices, manual actuation stations, point of
connection to the building fire evacuation alarm
system, remote trouble device, point of connection
to the incoming power supply and fusible safety
switch. Do not show conduit sizes or number of
conductors for DC circuits. Do not show locations
of detectors.
9. Show single line riser diagram for all
detection, activation, and alarm circuits.
SECTION 13956N
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