Technical
Data
Approvals
UL and C-UL Listed. (Approvals only
apply to the service conditions indi-
cated in the Design Criteria section.)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
3/4 inch NPT
Discharge Coefficient
K = 16.8 GPM/psi
1/2
(241,9 LPM/bar
1/2
)
Temperature Ratings
160°F/71°C or 212°F/100°C
Finish
Natural Brass, White, or Chrome
Plated
Physical Characteristics
Frame . . . . . . . . . . . . . . Brass
Deflector . . . . . Phosphor Bronze
Compression Screw . . . . . . . . .
. . . . . . . . . . . . Stainless Steel
Hook . . . . . . . . . . . . . . Monel
Strut . . . . . . . . . . . . . . . Monel
Link Assembly . . . . Solder, Nickel
Button . . . . . . . . . . . . . . Brass
Sealing Assembly . . . . . . . . . .
. . . . . Beryllium Nickel w/Teflon
†
Patents
Patent Pending
Operation
The fusible link assembly is comprised
of two link halves that are joined to-
gether by a thin layer of solder. When
the rated temperature is reached, the
solder melts and the two link halves
separate allowing the sprinkler to acti-
vate and flow water.
Design
Criteria
The Tyco
®
Model EC-17 Extended
Coverage Pendent Sprinklers (SIN
TY7228) are UL and C-UL Listed,
with
the exception of using plastic pallets
as described in 5.6.2.6 of NFPA 13-
2007, for installation in accordance
with the extended coverage pendent
spray sprinkler requirements of NFPA
13, or other applicable NFPA stand-
ards, when used in conjunction with
the following guidelines :
•
Suitable for the protection of extra
hazard and high-piled storage occu-
pancies where area/density design
criterion are provided.
•
Suitable for “unobstructed” or “non-
combustible obstructed” construc-
tion.
•
The Model EC-17 Sprinklers, having
been specifically tested and listed
for noncombustible obstructed con-
struction, are suitable for use within
trusses or bar joists having non-
combustible web members greater
than 1 inch (25,4 mm) when applying
the four times obstruction criteria
rule defined under “Obstructions to
Sprinkler Discharge Pattern Devel-
opment”.
•
The maximum area of coverage per
sprinkler is 196 sq. ft. (18,2 m
2
).
•
The maximum distance between
sprinklers is 15 feet (4,6 m) when the
coverage does not exceed 144 ft.
2
(13,4 m
2
), and the maximum dis-
tance between sprinklers is 14 feet
(4,3 m) when the coverage does not
exceed 196 ft
2
(18,2 m
2
).
•
The minimum distance between
sprinklers is 8 feet (2,44 m).
•
The minimum flow requirement is to
be based on the design density ap-
plied over the actual area of cover-
age per sprinkler.
For example: when sprinkler spac-
ing is 14 feet by 12 feet - 6 inches
(4,3 x 3,8 m) or 175 ft
2
(16,3 m
2
), and
the design density is 0.3 gpm/ft
2
(16,3 mm/m), the sprinkler design
flow rate is 53 GPM (200 LPM) and
the required design pressure is 10
psi (0,7 bar).
•
The minimum clearance between
the deflector and the top of storage
is 36 inches (0,9 m).
•
The ordinary and intermediate tem-
perature rated EC-17 Sprinklers
have been investigated for use in
high-piled storage occupancies at
the hydraulic demand normally as-
sociated with high temperature
sprinklers. As such, the EC-17 sprin-
klers are listed storage sprinklers
having a K-factor greater than 11.2
and having ordinary and intermedi-
ate temperature ratings (i.e., 160F
and 212F). Consequently, the EC-
17 Sprinklers, in accordance with
the NFPA 13, may be used in con-
junction with the density curves for
high temperature sprinklers.
Page 2 of 4
TFP215
FIGURE 1, MODEL EC-17 EXTENDED COVERAGE PENDENT SPRINKLER
6
*
2-3/4"
2"
WRENCH
FLATS
SEATING SURFACE
ESCUTCHEON PLATE
NPT
3/4"
1
2
3
4
5
-
2
Button
Temperature
Deflector
Compression
Screw
Link
Sealing
-
8
*
-
4
7 -
3 -
*
Components:
Frame
1 -
1/2" (12,7 mm)
NOMINAL MAKE-IN
rating is indicated
7
8
(69,9 mm)
(50,8 mm)
Hook
Stem
-
6
5 -
on deflector.
Assembly
Assembly
PENDENT
CROSS SECTION
RECESSED PENDENT
2-7/8" (73,0 mm) DIA.
STYLE 30
ESCUTCHEON
RECESSED
OBSOLETE
