TECHNICAL DATA
The 16.8 K-Factor, Model F892 De-
signer, Standard Response, Standard
Coverage,
Pendent
and
Upright
Sprinklers are rated for use at a maxi-
mum service pressure of 175 psi (12,1
bar). They are available in the tem-
perature ratings and finishes indicated
in Table A.
The nominal flow “Q” in GPM (LPM) is
determined by the following formula:
where the nominal sprinkler discharge
coefficient “K” = 16.8 (241,9) and “p”
equals the residual flowing pressure in
psi (bar).
The Frame of the Model F892 Sprin-
klers, (Ref. Figure A), is a dezincifica-
tion resistant bronze. The Button is
bronze, and the Gasketed Spring Plate
is sealed on both its inside and outside
faces with a Teflon
gasket. The Com-
pression Screw and the Deflector are
brass. The standard response Model
F892 Sprinklers utilize a 5 mm diame-
ter frangible bulb. Table A indicates
the bulb liquid color as a function of
temperature rating.
Q
K p
=
DuPont Registered Trademark
TYPE
TEMPERATURE
RATING
BULB
LIQUID
COLOR
NATURAL
BRASS
SPRINKLER FINISH
NOTES:
1. Listed by Underwriters Laboratories, Inc. (UL Listed) and listed by Underwriters Laboratories, Inc. for use in Canada (C-UL Listed) for
the following applications:
•
16.8 K-Factor F892 Sprinklers may be installed in accordance with NFPA 13 standard sprinkler position and area/density flow cal-
culation requirements for light, ordinary, or extra hazard occupancies with a minimum residual (flowing) pressure of 7 psi (0,5 bar).
•
16.8 K-Factor F892 Sprinklers may be installed in accordance with NFPA 13 standard sprinkler position and area/density flow cal-
culation requirements for high piled storage occupancies with a minimum residual (flowing) pressure of 7 psi (0,5 bar).
2. Listed by Underwriters Laboratories, Inc. (UL Listed) and listed by Underwriters Laboratories, Inc. for use in Canada (C-UL Listed) for
the following “specific application” and with ceiling only protection (i.e., no in-rack sprinklers):
•
16.8 K-Factor F892 Sprinklers, when acceptable to the Authority Having Jurisdiction, may be used to protect single, double, multi-
ple-row, or portable rack storage of Class I-IV commodity, encapsulated or non-encapsulated, as well as cartoned or uncartoned
unexpanded Group A or B plastics, or, cartoned expanded Group A or B plastics, with:
a storage height of up to 20 feet (6,1m);
a maximum ceiling height of 25 feet (7,6m);
a minimum deflector to top of storage clearance of 36 inches (0,9m);
a minimum design density of 0.60 gpm/ft
2
(24 mm/min);
a minimum residual (flowing) pressure of 7 psi (0,5 bar);
a minimum “Reduced Design Area” of 2000 ft
2
(186 m
2
) for wet systems or 2600 ft
2
(242 m
2
) for dry systems;
a maximum coverage area of 100 ft
2
(9,3 m
2
);
NFPA spacing criteria for standard spray sprinklers, i.e. 12 feet (3,7 m)* maximum and 6 feet (1,8 m) minimum;
NFPA deflector-to-ceiling distances; and,
NFPA obstruction criteria for standard spray sprinklers.
*12’-6" (3,8 m) is allowed in 25’-0" (7,6 m) wide bays.
3. Approved by Factory Mutual Research Corporation as follows:
•
16.8 K-Factor F892 Sprinklers are to be installed in accordance with the applicable “control mode specific area/density” guidelines
provided by Factory Mutual. (FM guidelines may differ from UL and C-UL Listing criteria.)
TABLE A
LABORATORY LISTINGS AND APPROVALS
PENDENT
(SIN G1889)
155°F/68°C
Red
200°F/93°C
Green
286°F/141°C
Blue
1, 2
UPRIGHT
(SIN G1888)
155°F/68°C
200°F/93°C
286°F/141°C
Blue
Green
Red
1, 2, 3
OBSOLETE
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