Design
Criteria
Figure 3 - Cross Section
Model ELO-231 BV, Upright Sprinkler Figure 4 - W-Type 3, Sprinkler Wrench (Part #1073)
The Model ELO-231 BV, 11.2 K-factor
Upright and Pendent Sprinklers (Ref.
Table 1) are UL and C-UL Listed and
NYC Approved (MEA 466-92-E Vol II) as
Standard Response, Standard Coverage,
Spray Sprinklers for use accordance with
current NFPA standards for the protection
of light, ordinary & extra hazard as well as
storage occupancies. These Area/Density
sprinklers are listed with a minimum
residual (flowing) pressure of 7 psi (0,5
bar) for non-storage occupancies and 10
psi (0,7 bar) for storage occupancies.
The Model ELO-231 BV, 11.2 K-factor
Upright and Pendent Sprinklers are UL
and C-UL Listed for use, when acceptable
to the Authority Having Jurisdiction, as
"specific application" sprinklers in
accordance with the design parameters
set forth in Table 2 of this Data Sheet.
The Model ELO-231BV, 11.2 K-factor
Upright and Pendent Sprinklers (Ref.
Table 1) are FM Approved for use in
accordance with the FM Loss Prevention
Data Sheets. These "Control Mode Area/
Density Sprinklers" are approved with a
minimum residual (flowing) pressure of 10
psi (0,7 bar).
These sprinklers can be used with any
metalic flush or extended escutcheon,
provided the maximum ceiling to top of
sprinkler deflector dimension specified in
NFPA 13 is maintained. These sprinklers
are not listed or approved for recessed
applications.
NOTE
Inquiries concerning the appropriateness
of polyester coated sprinklers for a given
corrosive environment should be
submitted to the attention of the Technical
Services Department. Polyester coated
sprinklers are not suitable for use in open
sprinkler applications.
The Model ELO-231 BV Upright &
Pendent Sprinklers
must be installed in
accordance with the following instructions.
NOTES
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
horizontally, a small air bubble should be
present. The diameter of the air bubble is
approximately 1/16 inch (1,6 mm) for the
155
°
F/68
°
C to 3/32 inch (2,4 mm) for the
286
°
F/141
°
C rating.
A leak tight 1/2 inch NPT sprinkler joint
should be obtained with a torque of 7 to
14 ft.lbs. (9,5 to 19,0 Nm). A maximum of
21 ft.lbs. (28,5 Nm) of torque is to be used
to install 1/2 inch NPT sprinklers. A leak
tight 3/4 inch NPT sprinkler joint should be
obtained with a torque of 10 to 20 ft.lbs.
(13,4 to 26,8 Nm). A maximum of
30 ft.lbs. (40.7 Nm) of torque is to be used
to install 3/4 inch NPT sprinklers. Higher
levels of torque may distort the sprinkler
inlet with consequent leakage or impair-
ment of the sprinkler.
Step 1. Upright sprinklers must be
installed only in the upright position and
pendent sprinklers must be installed only
in the pendent position. The deflector is to
be parallel to the ceiling, roof, or mounting
surface, as applicable.
Step 2. With pipe thread sealant applied
to the pipe threads, hand tighten the
sprinkler into the sprinkler fitting.
Step 3. Tighten the sprinkler into the
sprinkler fitting using only the W-Type 3
Sprinkler Wrench (Ref. Figure 4), except
that an 8 or 10 inch adjustable Crescent
wrench is to be used for wax coated
sprinklers. With reference to Figure 1 & 2,
both the W-Type 3 Sprinkler Wrench and
the adjustable Crescent wrench are to be
applied to the wrench flats only.
When installing wax coated sprinklers with
the adjustable Crescent wrench, addi-
tional care needs to be exercised to
SPRINKLER
FRAME
DEFLECTOR
GLASS BULB
OPERATING
ELEMENT
GASKETED
SPRING PLATE
(BELLEVILLE
SEAL)
BUTTON
ASSEMBLY
COMPRESSION
SCREW
Installation
prevent damage to the wax coating on the
sprinkler wrench flats or frame arms and,
consequently, exposure of bare metal to
the corrosive environment. The jaws of the
wrench should be opened sufficiently wide
to pass over the wrench flats without
damaging the wax coating. Before wrench
tightening the sprinkler, the jaws of the
wrench are to be adjusted to just contact
the sprinkler wrench flats. After wrench
tightening the sprinkler, loosen the wrench
jaws before removing the wrench.
After installation, the sprinkler wrench flats
and frame arms must be inspected and
the wax coating retouched (repaired)
whenever the coating has been damaged
and bare metal is exposed. The wax
coating on the wrench flats can be
retouched by gently applying a heated 1/8
inch diameter steel rod to the areas of wax
that have been damaged, to smooth it
back over areas where bare metal is
exposed.
NOTES
Only retouching of the wax coating applied
to the wrench flats and frame arms is
permitted, and the retouching is to be
performed only at the time of the initial
sprinkler installation.
The steel rod should be heated only to the
point at which it can begin to melt the wax,
and appropriate precautions need to be
taken, when handling the heated rod, in
order to prevent the installer from being
burned.
If attempts to retouch the wax coating with
complete coverage are unsuccessful,
additional wax can be ordered in the form
of a wax block. Care should be exercised
to assure that the proper rated tempera-
ture wax block is ordered. Only the
correct temperature wax is to be used,
and retouching of wrench flats and frame
arms is only permitted at the time of initial
sprinkler installation. With the steel rod
heated as previously described, touch the
rod to the area requiring additional wax
with the rod angled downward, and then
touch a portion of the wax block to the rod
approximately one-half inch away from the
area requiring retouching. The wax will
melt and run down onto the sprinkler.
