Model ESFR-17
16.8 K-factor Pendent Sprinkler
Early Suppression, Fast Response
Page 1 of 4
APRIL 2015
TFP317
IMPORTANT
Always refer to Technical Data
Sheet TFP700 for the “INSTALLER
WARNING” that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and
installation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
Technical
Data
Approvals
UL Listed
C-UL Listed
FM Approved
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connections
3/4 Inch NPT or
ISO 7-R 3/4
Discharge Coefficient
K=16.8 gpm/psi
1/2
(241,9 lpm/bar
1/2
)
Temperature Ratings
165°F (74°C) and 212°F (100°C)
Finish
Natural Brass
Physical Characteristics
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Compression Screw . . . . . . . . . . Stainless Steel
Hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . MONEL
Strut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . MONEL
Link Assembly . . . . . . . . . . . . . . . . Solder, Nickel
Button . . . . . . . . . . . . . . . . . . . Phosphor Bronze
Sealing Assembly . . Beryllium Nickel w/TEFLON
General
Description
TYCO Model ESFR-17 Pendent Sprin-
klers are Early Suppression, Fast
Response (ESFR) sprinklers having a
nominal K-factor of 16.8 (Ref. Figures
1 and 2). They are suppression mode
sprinklers that are especially advanta-
geous as a means of eliminating in-rack
sprinklers when protecting high-piled
storage.
Model ESFR-17 Pendent Sprinklers are
primarily used for ceiling-only sprinkler
protection of (but not limited to) the fol-
lowing storage applications:
• most encapsulated or non-encap-
sulated common materials including
cartoned, unexpanded plastics
• cartoned, expanded plastics
• uncartoned, unexpanded plastics
• uncartoned, expanded plastics
• some storage arrangements of
rubber tires, roll paper, and aerosols
For more specific criteria, refer to Table
1 in this technical data sheet as well as
the applicable design standard.
The Model ESFR-17 Pendent Sprin-
klers provide the system designer
with hydraulic and sprinkler place-
ment options not presently available
to traditional ESFR Sprinklers having
a nominal K-factor of 14.0. In particu-
lar, Model ESFR-17 Pendent Sprinklers
are designed to operate at substan-
tially lower-end head pressures, as
compared to ESFR Sprinklers having
a nominal K-factor of 14.0. This feature
offers flexibility when sizing system
piping, as well as possibly reducing or
eliminating the need for a system fire
pump.
Applications for the ESFR-17 Pendent
Sprinklers are expanding beyond cur-
rently recognized installation stan-
dards. For information on research fire
tests (with flammable liquids and aero-
sols, for example) that may be accept-
able to an authority having jurisdiction,
contact Tyco Fire Protection Products
(TFPP) Technical Services.
NOTICE
The Model ESFR-17 Pendent Sprinklers
described herein must be installed and
maintained in compliance with this doc-
ument, as well as with the applicable
standards of the National Fire Protec-
tion Association (NFPA), in addition to
the standards of any authorities having
jurisdiction (e.g., FM Global). Failure to
do so may impair the performance of
these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
In all cases, the appropriate NFPA or
FM Global installation standard, or
other applicable standard, must be ref-
erenced to ensure applicability and to
obtain complete installation guidelines.
The general guidelines in this technical
data sheet are not intended to provide
complete installation criteria.
Sprinkler
Identification
Number (SIN)
TY7223
