General
Description
The Central Model S170, 5.6 K-Fac-
tor (1/2 inch orifice), Standard or
Quick Response, Standard Cover-
age, Dry Pendent Sprinklers are
decorative glass bulb automatic
sprinklers designed for use
•
where pendent sprinklers are re-
quired on dry pipe systems that are
exposed to freezing temperatures
(e.g. sprinkler drops from unheated
portions of buildings), or
•
where sprinklers and/or a portion of
the connecting piping may be ex-
posed to freezing temperatures
(e.g. sprinkler drops from wet sys-
tems into freezers), or
•
where pendent sprinklers are used
on systems that are seasonably
drained to avoid freezing (e.g. vaca-
tion resort areas).
The Model S170 Dry Pendent Sprin-
klers are available in standard re-
sponse (5 mm bulb) or quick re-
sponse (3 mm bulb) and in a wide
range of operating temperatures and
order lengths. The Model S170
Sprinklers are intended for use in
fire sprinkler systems designed in ac-
cordance with the standard installa-
tion rules recognized by the applica-
ble Listing or Approval agency (e.g.,
UL Listing is based on NFPA 13 re-
quirements). They produce a hemi-
spherical water discharge pattern be-
low the deflector.
The Recessed, Standard, and Deep
Ceiling Escutcheons for the Model
S170 are separable two-piece de-
signs which allow installation of the
sprinklers and pressure testing of
the fire protection system prior to in-
stallation of a suspended ceiling.
They also permit removal of sus-
pended ceiling panels without having
to first shut down the fire protection
system and remove the sprinklers.
Operation:
When the Model S170 is
in service, water is prevented from
entering the assembly by the Plug &
O-ring (Ref. Figure 2) in the Inlet of
the Sprinkler. The glass Bulb con-
tains a fluid which expands when ex-
posed to heat. When the rated tem-
perature is reached, the fluid
expands sufficiently to shatter the
glass Bulb, and the Bulb Seat is re-
leased. The compressed Spring is
then able to expand and push the
Water Tube as well as the Guide
Tube outward. This action simultane-
ously pulls inward on the Yoke, with-
drawing the Plug & O-ring from the
Inlet, which then allows the sprinkler
to activate and flow water.
WARNINGS
The Model S170 Dry Pendent Sprin-
klers described herein must be in-
stalled and maintained in compli-
ance 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 integ-
rity of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. The installing contractor or
sprinkler manufacturer should be
contacted relative to any questions.
The Model S170 Dry Pendent Sprin-
klers must only be installed in fittings
that meet the requirements of the De-
sign Criteria section.
Technical
Data
Sprinkler Identification Number
SIN C3255 (Standard Response)
SIN C3235 (Quick Response)
Approvals
UL and ULC Listed. FM Approved.
(Refer to Table A)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
1 inch NPT or ISO 7-R1
Discharge Coefficient
K = 5.6 GPM/psi
1/2
(80,6 LPM/bar
1/2
)
Temperature Ratings
Refer to Table A
Finishes
Sprinkler: Natural Brass, Chrome
Plated, White Polyester
Escutcheon: White Coated or
Chrome Plated
(Colors other than white are avail-
able on request.)
Physical Characteristics
The Plug and Inlet are brass, and
the O-ring is silicone rubber. The
Casing is galvanized carbon steel.
The Frame is bronze, the Deflector
is brass, and the Compression
Recessed,
Standard, and
Deep Ceiling
Escutcheons
No. 5-5.5
Model S170
Standard or Quick Response
Standard Coverage
Dry Pendent Sprinklers
Tyco Fire Products — www.centralsprinkler.com
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Customer Services/Sales: Tel: (215) 362-0700 / Fax: (215) 362-5385
Technical Services: Tel. (800) 381-9312 / Fax: (800) 791-5500
CENTRAL
S170
3-01
OBSOLETE
