standard corrosion tests of the
applicable approval agencies, the
testing is not representative of all
possible corrosive atmospheres.
Consequently, it is recommended 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 temperature, concentration of
chemicals, and gas/chemical velocity,
should be considered, as a minimum,
along with the corrosive nature of the
chemical to which the sprinklers will
be exposed.
Operation:
Model ELO-231 - A fusible alloy is
sealed into a bronze actuating rod
(center strut) by a stainless steel ball.
When the alloy melts at its rated
temperature, the ball is forced upward
into the center strut, releasing the two
ejectors and operating the sprinkler.
Model ELO-231 BV & ELO-231 BVQR -
The glass bulb contains a fluid which
expands when exposed to heat. When
the rated temperature is reached, the
fluid expands sufficiently to shatter the
glass bulb, which then allows the
sprinkler to activate & flow water.
WARNINGS
The Model ELO-231, ELO-231 BV &
ELO-231 BVQR Intermediate Level
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.
Failure to do so may impair the
integrity of these devices.
The owner is responsible for maintain-
ing their fire protection system and
devices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
relative to any questions.
Tyco Fire Products --- www.centralsprinkler.com
451 North Cannon Avenue, Lansdale, Pennsylvania 19446 --- USA
Customer Service/Sales: Tel: (215) 362-0700 / Fax: (215) 362-5385
Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
Model ELO-231
TM
, ELO-231 BV
& ELO-231 BVQR
No. 3-11.0
11.2 K-factor - Standard & Quick Response
Upright & Pendent Pendent Fusible Solder & Glass Bulb Type
Automatic Sprinkler
General
Description
The Central Model ELO-231, ELO-231
BV & ELO-231 BVQR, 11.2 K-factor
Upright & Pendent Intermediate Level
Automatic Sprinklers are designed for
use in sprinkler systems having
sprinklers at multiple elevations in the
same area. Intermediate Level
Sprinklers are primarily designed for
use in rack storage sprinkler systems,
where their thermally sensitive
elements must be sheilded from the
water spray of higher elevation
sprinklers which could operate earlier
during a fire. Intermediate Level
Sprinklers are also used in applica-
tions such as beneath open gridded
catwalks.
The upright version of the Intermedi-
ate Level Sprinkler is created using an
upright Model ELO-231, ELO-231 BV
or ELO-231 BVQR Standard Spray
Sprinkler and a separate head guard/
water sheild assembly (WSG-2). The
pendent version is created using a
pendent Model ELO-231, ELO-231 BV
or ELO-231 BVQR Standard Spray
Sprinkler and a separate water sheild
(WS-2) that is threaded on the 3/4"
NPT of the sprinkler prior to installing
the sprinkler into the fitting.
If there is a possibility that the Model
ELO-231, ELO-231 BV or ELO-231
BVQR Standard Spray Sprinkler may
be exposed to mechanical damage, a
head guard assembly (G-2) can be
added to the Sprinkler.
These sprinklers are available with
wax, lead, or polyester coatings, as
applicable. These coatings may be
utilized to extend the life of copper
alloy sprinklers beyond that which
would otherwise be obtained when
exposed to corrosive atmospheres.
Although wax, lead and polyester
coated sprinklers have passed the
CENTRAL ELO Intermediate Level 10-01
Intermediate
Level Automatic
Sprinklers
OBSOLETE
