Tyco Fire Product Gem F898 Instruction Manual

TYCO FIRE PRODUCTS, 7071 S. 13th Street, Suite 103 Oak Creek, WI 53154 — www.gemsprinkler.com
LARGE DROP SPRINKLERS
UPRIGHT, STANDARD RESPONSE
MODEL F898 DESIGNER, 5 mm BULB TYPE, K=11.2, 3/4 INCH NPT**

GENERAL DESCRIPTION

The 11.2 K-Factor, Model F898 De-
signer, Standard Response, Upright
Large Drop Sprinklers (Ref. Figure A)
are automatic sprinklers of the frangi-
ble bulb type. They are intended for use
with National Fire Protection Associa-
tion and Factory Mutual Research Cor-
poration "large drop sprinkler" installa-
tion criteria for the protection of high
piled storage. The F898 Sprinklers can
provide a higher level of protection
than standard spray sprinklers and, in
some cases, they can provide an eco-
nomic advantage by eliminating in-
rack sprinklers.

APPROVALS AND STANDARDS

The 11.2 K-Factor, Model F898 (SIN
G1898) Upright Large Drop Sprinklers
are Listed and Approved by Factory
Mutual Research Corporation.

WARNING

The Model F898 Upright Large Drop
Sprinklers described herein must be
installed 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
(e.g., Factory Mutual Research Corpo-
ration). Failure to do so may impair
the integrity of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
Printed in U.S.A. 3-01
Customer Service/Sales: Tel: (877) 436-8926 / Fax: (877) 866-9250
Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
2
3
4
5
6
1
1-Frame
2-Deflector
3-Compression Screw
** Pipe thread connections per ISO 7/1 can be provided on special request.
MODEL F898 (SIN G1898) UPRIGHT LARGE DROP SPRINKLER ASSEMBLY
dition. The installing contractor or
manufacturer should be contacted
relative to any questions.

TECHNICAL DATA

The 11.2 K-Factor, Model F898 Up-
right Large Drop Sprinklers are rated
for use at a maximum service pressure
of 175 psi (12,1 bar). They are avail-
able in 155°F/68°C, 200°F/93°C, and
286°F/141°C temperature ratings with
a natural brass finish.
The flow "Q" in GPM (LPM) is deter-
mined by the formula:
Q = K p
where the nominal sprinkler discharge
coefficient "K" equals 11.2 (161,3); and
"p" equals the residual flowing pres-
sure in psi (bar).
The F898 utilizes a 5 mm Bulb and a
die cast dezincification resistant
TEMPERATURE
RATING
WRENCH FLAT
(BOTH SIDES)
3/4" **
2-3/8"
NPT
(60,3 mm)
1/2" (12,7 mm)
NOMINAL MAKE-IN
4-Bulb
5-Button
6-Gasketed Spring Plate
FIGURE A
bronze alloy Frame, and the Deflector
is brass. The Button and Compression
Screw are brass. The Gasketed Spring
Plate consists of a beryllium nickel
disc spring that is sealed on both its
inside and outside edges with a Tef-
lon gasket.
†

DESIGN CRITERIA

The 11.2 K-Factor, Model F898 Up-
right Large Drop Sprinklers are only for
use with National Fire Protection As-
sociation and Factory Mutual Re-
search Corporation "large drop sprin-
kler" installation criteria.

INSTALLATION

Do not install any bulb type sprinkler
if the bulb is cracked or there is a loss
of liquid from the bulb. With the
sprinkler held horizontal, an approxi-
2-1/4" (57,2 mm)
NOTES
TD597