Std Response - Std. Coverage
Upright and Pendent
Intermediate Level Sprinklers
Model I-LD-2
K=5.6 and 8.0
GENERAL DESCRIPTION
The Star Model I-LD-2, 5.6 and 8.0 K-Factor, Upright and
Pendent, Intermediate Level Sprinklers are standard re-
sponse - standard coverage, fusible solder type spray
sprinklers primarily designed for use in rack storage sprin-
kler systems. The Shields are intended to help prevent
water spray from higher elevation sprinklers, which could
operate earlier during a fire, from wetting the fusible ele-
ment of lower elevation sprinklers, e.g., sprinklers located
in rack storage or sprinklers located beneath open grid-
ded catwalks.
WARNINGS
The Model I-LD-2 Sprinklers described herein must be in-
stalled and maintained in compliance with this document,
as well as with the applicable standards of the National
Fire Protection Association, in addition to the standards
of any other authorities having jurisdiction. Failure to do
so may impair the integrity of these devices.
The owner is responsible for maintaining their fire protec-
tion system and devices in proper operating condition.
The installing contractor or sprinkler manufacturer should
be contacted relative to any questions.
OPERATION
A bronze tube sealed by two stainless steel balls holds a
fusible alloy. When the rated temperature is reached, the
alloy melts, the balls are forced toward each other releas-
ing the tension mechanism, which then allows the sprin-
kler to activate and flow water.
TECHNICAL DATA
Approvals
UL and ULC Listed. FM and NYC Approved.
(Refer to Table A. The approvals apply only to the service
conditions indicated in the Design Criteria section.)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
1/2 inch NPT for K=5.6
3/4 inch NPT for K=8.0
Discharge Coefficient
K=5.6GPM/psi
1/2
(80,7 LPM/bar
1/2
)
K=8.0GPM/psi
1/2
(115,2 LPM/bar
1/2
)
Temperature Ratings
135°F/57°C, 165°F/74°C, 212°F/100°C,
280°F/138°C, or 360°F/182°C
(Refer to Table A)
Finish
Sprinkler: Natural Brass
Physical Characteristics (Ref. Figure 1)
The Model I-LD-2 utilizes a dezincification resistant
(DZR) bronze frame with a brass deflector and shield.
The waterway is sealed with Teflon
gasketed brass but-
ton, and the fusible assembly is constructed of bronze
and stainless steel components.
DuPont Registered Trademark
SIN S1809
K=5.6 Upright
With I-LD-2
SIN S1801
K=5.6 Pendent
With Separately
Ordered I-LD-2
Shield & O-Rings
SIN S1822
K=8.0 Upright
With I-LD-2 Shield
SIN S1811
K=8.0 Pendent
With Separately
Ordered I-LD-2
Shield & O-Rings
Customer Service/Sales: Tel: (800) 558-5236 • Fax: (414) 570-5010
Technical Services: Tel: (800) 381-9312 • Fax: (800) 791-5500
3-01
1-4.2.20
TYCO FIRE PRODUCTS
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