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Page Title:
Table I. Temperature rating and color coding |
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|  MIL-S-24686A(SH)
3.2 Design.
3.2.1 General. The automatic sprinklers shall be the frangible bulb type.
The sprinklers shall meet the sensitivity requirements for quick response
sprinklers defined in ANSI/UL 199. The sprinklers shall be leak tight for
extended periods of time when pressurized with seawater. The sprinklers shall
open as intended and release all parts at pressures of 5 to 175 psig, when the
bulb temperature is within the actuating temperature range defined in ANSI/UL 199.
3.2.2 Temp erature rating . Automatic sprinkler temperature ratings,
temperature classifications, maximum overhead temperatures and colors coding shall
be as specified in table I. The temperature classification and frame colors shall
be consistent with ANSI/UL 199 for each temperature rating. The maximum overhead
temperatures shall be consistent with ANSI/UL 199 for maximum ceiling
temperatures. The bulb colors shall be consistent with NFPA 13.
TABLE I.
Temp erature rating and color coding.
Color coding
Maximum
overhead
Temperature
Temperature
temperature ("F)
Bulb
rating ("F)
Frame
classification
155
None
Red
100
Ordinary
150
White
175
Yellow
Intermediate
150
White
200
Green
Intermediate
3.2.3 Nominal orifice size. Nominal orifice sizes, corresponding discharge
coefficients , and identification features shall be as specified in table II and
shall be consistent with ANSI/UL 199 requirements. Dimensional tolerances on
orifice sizes shall be consistent with ANSI/UL 199 requirements. The discharge
coefficient "K" is defined as:
K-L
/P
Where:
Flow, gallons per minute (gpm)
Q-
Supply pressure, lb/in2 gage (psig)
P-
The discharge coefficient shall be determined in accordance with the method of
ANSI/UL 199,
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