[where shown].]
[2.2.4
Dry-Pipe Valves
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NOTE: Select this paragraph or the paragraph above
entitled "[Pre-action][Deluge] Valves."
**************************************************************************
Provide valves complete with accessories and appurtenances for the proper
operation of each system. Provision shall be made to prevent excessive
water columning. Provide an approved quick-opening device for each dry-
pipe valve controlling a system having a capacity greater than 500 gallons.
Provide gages and other appurtenances as required by NFPA 13.
]2.2.5
AFFF Solution Distribution
**************************************************************************
NOTE: Select the first option for pre-action and
dry-pipe systems. Select the second option for
deluge systems.
**************************************************************************
[Distribution shall be essentially uniform throughout the area in which it
is assumed the sprinkler heads will open. Variation in discharge from
individual heads in the hydraulically most remote area shall be between 100
and 120 percent of the specified density.]
[Distribution shall be essentially uniform throughout the area. Variation
in discharge from individual heads shall be between 100 and 120 percent of
the specified density.]
2.2.6
AFFF Solution Application Density
**************************************************************************
NOTE: Refer to MIL-HDBK-1008A and the appropriate
NFPA standard(s) governing the particular facility
to determine the density required.
**************************************************************************
Size system to provide the specified density when the system is discharging
the specified total maximum required flow. Application to horizontal
surfaces below the ceiling sprinklers shall be [_____] mL/sec gallons per
minute (gpm) per square meter foot with simultaneous operation of [3
in-rack sprinklers on each level of the hydraulically most remote rack at a
minimum discharge pressure of 207 kPa 30 psi,] [and] [[_____] operating
foam monitor nozzles,] [and] [_____] operating foam hose lines, [and with
outside water hose stream requirements of [_____] mL/sec gpm].
2.2.7
Sprinkler Discharge Area
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NOTE: Refer to MIL-HDBK-1008A and the appropriate
NFPA standard(s) governing the particular facility
to determine the discharge area required. For
deluge system, discharge area shall be the entire
area protected by the system.
**************************************************************************
SECTION 13958N
Page 17
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