Pendent & Upright Sprinklers,
Std. Coverage, Quick Response,
Pulsar™ S160QR, K=11.2, 3/4" NPT
GENERAL DESCRIPTION
The Star 11.2 K-Factor Pulsar S160QR, Quick Response,
Standard Coverage, Pendent and Upright Sprinklers (Ref.
Figure A) are automatic sprinklers of the frangible bulb
type. They are “quick response - spray sprinklers” which
produce a hemispherical water distribution pattern below
the deflector.
The Pulsar S160QR Sprinklers are intended for use in
fire sprinkler systems designed in accordance with the
standard installation rules recognized by the applicable
Listing or Approval agency (e.g., UL Listing is based on
the requirements of the National Fire Protection Associa-
tion). Also, when acceptable to the Authority Having Juris-
diction, they may be used with a “Reduced Design Area”
as indicated in Table A.
The 11.2 K-Factor Pulsar S160QR Sprinklers were sub-
jected to full scale, high-piled storage, fire tests to qualify
their use in lieu of 5.6 or 8.0 K-Factor standard spray
sprinklers for the protection of high-piled storage.
Higher flow rates can be achieved at much lower pre-
sures with the 11.2 K-Factor S160QR Sprinklers — mak-
ing their use highly advantageous in high density applica-
tions, such as the protection of high-piled storage.
The use of the 11.2 K-Factor S160QR Sprinkler also has
the advantage of having a specific application listing,
which in some cases can subsequently reduce the design
area and the overall water demand of a sprinkler system.
Refer to Table A for details.
Wax, lead, or polyester coatings can be used to extend
the life of the copper alloy components used in Model
S160QR sprinklers beyond that which would otherwise be
obtained when exposed to corrosive atmospheres. Al-
though wax, lead, and polyester coated sprinklers have
passed the standard corrosion tests of the applicable ap-
proval agencies, the testing is not representative of all
possible corrosive atmospheres. Consequently, it is rec-
ommended that the end user be consulted with respect to
the suitability of these corrosion resistant coatings for any
given corrosive environment. The effects of ambient tem-
perature, concentration of chemicals, and gas/chemical
velocity, should be considered, as a minimum, along with
the corrosive nature of the chemical to which the sprin-
klers will be exposed.
WARNING
The 11.2 K-Factor, Pulsar S160QR Pendent and Upright
Sprinklers described herein must be installed and main-
tained 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 manufacturer should be con-
tacted relative to any questions.
OPERATION
The glass bulb contains a fluid which expands when ex-
posed to heat. When the rated temperature is reached,
the fluid expands sufficiently to shatter the glass bulb,
which then allows the sprinkler to activate and flow water.
TECHNICAL DATA
Approvals
UL and C-UL Listed. FM Approved.
(Laboratory listings and approvals are given in Table A)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
3/4 inch NPT or ISO 7-R3/4
Discharge Coefficient
K = 11.2 GPM/psi
1/2
(161,3 LPM/bar
1/2
)
Finish and Temperature Ratings
Refer to Table A
Physical Characteristics (Ref. Figure 1)
The Pulsar S160QR utilizes a dezincification resistant
bronze alloy frame and a 3 mm frangible bulb element.
The button is bronze, and the deflector and compression
screw are brass. The gasketed spring plate is sealed on
both its inside and outside edges with a Teflon
gasket.
NOTES
Inquiries concerning the appropriateness of wax, lead, or
polyester coated sprinklers for a given corrosive environ-
ment should be submitted to the attention of the Techni-
cal Services Department.
Wax, lead, or polyester coated sprinklers are not suitable
for use in open sprinkler corrosive environments.
SIN S2551
SIN S2550
DuPon
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Regi
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Trad
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Customer Service/Sales: Tel: (800) 558-5236 • Fax: (414) 570-5010
Technical Services: Tel: (800) 381-9312 • Fax: (800) 791-5500
3-01
1-4.1.21
TYCO FIRE PRODUCTS
OBSOLETE
