Series DS-2 Dry-Type Sprinklers
11.2K Pendent
Extended Coverage, Light and Ordinary Hazard
Page 1 of 8
FEBRUARY 2020
TFP540
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
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.
Worldwide
Contacts
www.tyco-fire.com
Series DS-2 Dry-Type Sprinklers must
only be installed in fittings that meet
the requirements of the Design Crite-
ria section.
Sprinkler
Identification
Number (SIN)
TY5238
Technical
Data
Approvals
UL and C-UL Listed
NYC Approved under MEA 173-02-E
See Table A.
(These Approvals apply to the service
condition indicated in the Design Criteria
section.)
Maximum Working Pressure
175 psi (12,1 bar)
Inlet Thread Connections
1 in. NPT or
ISO 7-R 1
Discharge Coefficient
See Table D
Temperature Ratings
See Table A
Finishes
Sprinkler: See Table E
Escutcheon: See Table E
Physical Characteristics
Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Copper
Yoke . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel
Casing . . . . . . . . . . . . . Galvanized Carbon Steel
Insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Bulb Seat . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glass
Compression Screw . . . . . . . . . . . . . . . . .Bronze
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Guide Tube . . . . . . . . . . . . . . . . . Stainless Steel
Water Tube . . . . . . . . . . . . . . . . . Stainless Steel
Spring . . . . . . . . . . . . . . . . . . . . . Stainless Steel
Plug . . . . . . . . . . . . . . . Copper Gasketed Spring
Plate Seal . . . . . . . .Beryllium Nickel w/TEFLON
Pin . . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel
Button Spring . . . . . . . . . . . . . . . Stainless Steel
Escutcheon . . . . . . . . . . . . . . . . . . .Carbon Steel
General
Description
TYCO Series DS-2 Dry-Type Sprinklers,
11.2K Pendent, Extended Coverage,
Light and Ordinary Hazard (ECLH/
ECOH) are decorative glass bulb auto-
matic sprinklers typically used where:
• pendent sprinklers are required on
dry pipe systems that are exposed
to freezing temperatures (for exam-
ple, sprinkler drops from unheated
portions of buildings)
• sprinklers and/or a portion of the
connecting piping may be exposed
to freezing temperatures (for exam-
ple, sprinkler drops from wet sys-
tems into freezers)
NOTICE
Series DS-2 Dry-Type Sprinklers
described herein must be installed
and maintained in compliance with this
document, as well as with the applica-
ble standards of the NATIONAL FIRE
PROTECTION ASSOCIATION (NFPA),
in addition to the standards of any other
authorities having jurisdiction. 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.
Operation
When TYCO Series DS-2 Dry-Type
Sprinklers, 11.2K Pendent, Extended
Coverage, Light and Ordinary Hazard
are in service, water is prevented from
entering the assembly by the Plug
with Gasketed Spring Plate Seal (see
Figure 1) in the Inlet of the sprinkler.
The glass bulb contains a fluid that
expands when exposed to heat. When
the rated temperature is reached, the
fluid expands sufficiently to shatter
the glass bulb, and the Bulb Seat is
released.
The compressed Spring is then able
to expand and push the Water Tube as
well as the Guide Tube outward. This
action simultaneously pulls inward on
the Yoke, withdrawing the Plug with
Gasketed Spring Plate Seal from the
Inlet allowing the sprinkler to activate
and flow water.
