Design
Criteria
The Model TFP1 Residential Flush
Pendent Sprinklers must only be in-
stalled and utilized in accordance
with the following described criteria
which are provided by the manufac-
turer.
NOTES
Residential Fire Sprinkler Sys-
tems should only be designed and
installed by those competent and
completely familiar with automatic
sprinkler system design, installa-
tion procedures, and techniques.
Several criteria may apply to the
installation and usage of each
sprinkler. Consequently, it is rec-
ommended that the sprinkler sys-
tem designer review and develop
a working understanding of the
complete list of criteria prior to in-
itiating the design of the sprinkler
system.
Questions concerning sprinkler in-
stallation and usage criteria which
are not covered by the following
instructions should be submitted
to Tyco Fire Products. Include
sketches and technical details as
appropriate.
In some instances, the require-
ments of this document may con-
cern specifica-
tions which are
more stringent
and which take
precedence over
those specified
in NFPA 13,
NFPA 13D, NFPA
13R, or by the
authority having
jurisdiction.
The spray from
the sprinkler is
distributed ra-
dially outward
and downward
from the sprin-
kler deflector.
Consequently,
the sprinklers
must be located
such that there
will not be any
blind spaces
shielded from spray by partitions,
room dividers, overhangs or other
parts of the dwelling structure.
The number of sprinklers within
each compartment (as defined by
NFPA 13, 13D, or 13R), must be
kept as few as possible. Do NOT
use more sprinklers than neces-
sary to cover a particular space.
Use only the escutcheon provided
with the Model TFP1.
The sprinkler must be secured in
position by firmly fastening the
sprinkler system piping to the
structure. If the sprinkler is not
properly secured in position, reac-
tion forces resulting from sprin-
kler operation could alter its orien-
tation and its water distribution
pattern. The sprinkler escutcheon
cannot be used to hold the sprin-
kler in position.
General Service Conditions.
The
Model TFP1 must only be utilized in
wet pipe sprinkler systems.
Hydraulic Design Criteria.
The mini-
mum required single and multiple
sprinkler flow rates for systems de-
(a) For coverage area dimensions less than or between those
indicated, it is necessary to use the minimum required flow for
the next highest coverage area for which hydraulic design
criteria are stated.
(b) Requirement is based on minimum flow in GPM from each
sprinkler. The associated residual pressures are calculated
using the nominal K-factor. Refer to Hydraulic Design Criteria
Section for details.
Table A
NFPA 13D and NFPA 13R
Hydraulic Design Criteria
12 x 12
MAXIMUM
COVERAGE
AREA
(a)
FT. x FT.
SINGLE
SPRINKLER
Minimum Flow
(b)
Residual Pressure
14 x 14
16 x 16
18 x 18
20 x 20
11.5 GPM (43,5 LPM)
7.5 PSI (0,5 BAR)
11.5 GPM (43,5 LPM)
7.5 PSI (0,5 BAR)
14 GPM (53,0 LPM)
11.1 PSI (0,8 BAR)
14 GPM (53,0 LPM)
11.1 PSI (0,8 BAR)
18 GPM (68,1 LPM)
18.4 PSI (1,3 BAR)
16 GPM (60,6 LPM)
14.5 PSI (1,0 BAR)
23 GPM (87,1 LPM)
30.1 PSI (2,1 BAR)
20 GPM (75,7 LPM)
22.7 PSI (1,6 BAR)
11.5 GPM (43,5 LPM)
7.5 PSI (0,5 BAR)
11.5 GPM (43,5 LPM)
7.5 PSI (0,5 BAR)
162°F
MULTIPLE
SPRINKLERS
Minimum Flow
(b)
Residual Pressure
162°F
Figure 1
Model TFP1 Residential
Flush Pendent Sprinkler
A
B
C
SPRINKLER
AREA
WRENCHING
TOLERANCE
CEILING LEVEL
LIMIT
FITTING
FACE OF
SPRINKLER
PROTECTIVE CAP
(23.0±4.8 mm)
29/32±3/16"
MOUNTING
SURFACE
3/32" (2.4 mm) TYP.
2-15/16" (75 mm) DIA.
IN OPERATED
POSITION
DEFLECTOR
29/32±3/16"
(23.0±4.8 mm)
2" (50 mm) DIA.
DO NOT
OVER-TIGHTEN
COLLECTOR
HEAT
(57.2 mm)
2-1/4"
NOMINAL MAKE-IN
7/16" (11.1 mm)
1/2" NPT
2
OBSOLETE
