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Model K17-231 — 16.8 K-factor
Upright and Pendent Sprinklers
Standard Response, Standard Coverage
General
Description
The 16.8 K-factor, Model K17-231,
Standard Response, Standard Cover-
age, Upright and Pendent Sprinklers
(Ref. Figure 1) are automatic sprin-
klers of the frangible bulb type. They
are "standard response - spray sprin-
klers" which produce a hemispherical
water distribution pattern below the de-
flector.
The 16.8 K-factor, K17-231 Sprinklers
were subjected to full scale, high-piled
storage, fire tests to qualify their use in
lieu of 8.0 or 11.2 K-Factor standard
spray sprinklers for the protection of
high-piled storage.
Higher flow rates can be achieved at
much lower pressures with the 16.8
K-factor, K17-231 Sprinklers — mak-
ing their use highly advantageous in
high density applications, such as the
protection of high-piled storage.
Applications for the 16.8 K-factor,
Model K17-231 Pendent and Upright
Sprinklers are expanding beyond the
current listings/approvals. For informa-
tion regarding research fire tests which
may be acceptable to an Authority
Having Jurisdiction, please contact the
Technical Services Department.
WARNING
The 16.8 K-factor, Model K17-231 Up-
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 in-
stallation 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.
Page 1 of 4
right and Pendent Sprinklers de-
scribed herein must be installed and
maintained in compliance with this
document, as well as with the applica-
ble standards of the National Fire Pro-
tection Association, in addition to the
standards of any other authorities hav-
ing jurisdiction. Failure to do so may
impair the performance of these de-
vices.
The owner is responsible for maintain-
ing their fire protection system and de-
vices in proper operating condition.
The installing contractor or manufac-
turer should be contacted with any
questions.
Sprinkler
Identification
Number
TY7151 - Upright, 16.8K
TY7251 - Pendent, 16.8K
TY7151 is a redesignation for C7151,
G1888, and S8040.
TY7251 is a redesignation for C7251,
G1889, and S8041.
Technical
Data
Approvals
UL and C-UL Listed. FM and NYC Ap-
proved. (Specific details for laboratory
listings and approvals given in Table A.
The approvals apply to the service
conditions indicated in the Design Cri-
teria section.)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
3/4 inch NPT or ISO 7-R3/4
Discharge Coefficients
1/2
K = 16.8 GPM/psi
1/2
(241,9 LPM/bar
)
JANUARY, 2005
Temperature Ratings
Refer to Table A
Finish
Natural Brass
Physical Characteristics
Frame . . . . . . . . . . . . Bronze
Button . . . . . . . . . . . . Bronze
Sealing Assembly . . . . . . . . . .
. . . . . . Beryllium Nickel w/Teflon†
Bulb
. . . . . . . Glass (5 mm dia.)
Compression Screw . . . . . . . . .
. . . . . . . . . . . . . . . . . Brass
Deflector . . . . . . . . . . . . Brass
†Registered trademark of DuPont.
TFP332
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