1-99
ELO LH
Quick Response
Extended
Coverage
Light Hazard
Recessed Pendent
and Pendent
Sprinkler
Quick Response
Extended Coverage Light Hazard
Extra Large Orifice
Recessed Pendent and Pendent
Glass Bulb Automatic Sprinkler
ELO LH
Manufactured by: Central Sprinkler Company
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Product
Description
Technical
Data
Model: ELO LH
Style: Recessed Pendent, Pendent
Escutcheon: Model ELO 2-piece
Recessed/Vented Escutcheon
Note: In the recessed position, only
the Model ELO (2-piece) Recessed
Escutcheon may be used. Substitu-
tion of other “recessed” escutcheons
may impair the operating sensitivity
and distribution pattern.
Wrench: Pendent: Part #1073
ELO/ELO/ESFR Combination
Recessed Pendent: Part #1092
ELO Offset
Orifice Size: 0.64"
(16.3 mm) (ELO)
K-Factor: 11.4
(163.02 metric)
Thread Size:
3
⁄
4
" N.P.T.
(20 mm)
Temperature Rating:
135
°
F/57
°
C, 155
°
F/68
°
C
200
°
F/93
°
C, 250
°
F/121
°
C
Approvals: U.L., cUL, MEA
466-92-E Vol. III
Maximum Working Pressure:
175 psi (12.1 bar)
Factory Hydro Test: 100% at
500 psi (34.5 bar)
Standard Finishes:
brass or chrome plated
Corrosion Resistant Coatings:
white or black painted
Escutcheon: brass, chrome plated,
white or black painted
Length: 2
3
⁄
4
"
(70 cm)
Width: 1
1
⁄
2
"
(3.80 cm)
Weight: 4.2 oz.
(120 grams)
No. 2-6.0
The Central Model ELO LH Extra Large
Orifice Recessed Pendent and Pendent
Automatic Glass Bulb Sprinklers are
specifically designed for Extended
Coverage/Light Hazard as defined by
NFPA 13. They are Listed as Quick
Response, up to 20' x 20'
(6.1 m x 6.1 m)
spacing. The ELO LH is Listed for
smooth flat horizontal ceilings as are all
Extended Coverage Light Hazard
Sprinklers.
The ELO LH provides the maximum in
design flexibility as it has a minimum
separation of only 11'-0"
(3.3 m) and is
Listed for flows and pressures associated
with 16' x 16'
(4.9 m x 4.9 m), 18' x 18'
(5.5 m x 5.5 m) and 20' x 20' (6.1 m x 6.1
m) spacing.
They are intended for use with hydrauli-
cally designed systems using the flows
and pressures as shown in this literature.
For the purpose of determining the correct
flow and pressure to use in the hydraulic
calculations, all spacing is rounded up to
the next higher category. For
example,17'-6" x 15'-0"
(5.2 m x 4.6 m)
spacing would be calculated at the Listed
18' x 18'
(5.5 m x 5.5 m) flow and
pressure.
The advantage of the ELO LH is the
ability to cover large areas, up to 400
square feet
(372 m
2
), with pressures that
compare to
1
⁄
2
"
(15 mm) standard
sprinklers spaced at their maximum of
225 square feet
(20.9 m
2
). For example,
the ELO LH can cover 20' x 20'
(6.1 m x
6.1 m) spacing or 400 square feet (372
m
2
) with less pressure than is required
with
1
⁄
2
"
(15 mm) sprinklers at 225 square
feet
(20.9 m
2
). (12.3 vs. 16.1 psi (0.8 vs.
1.1 bar) )
The Model ELO LH Sprinkler incorpo-
rates a specially designed deflector that
provides a much greater area of coverage
than standard commercial sprinklers. The
two (2) piece recessed escutcheon
assembly provides for
3
⁄
4
"
(19.1 mm) of
field adjustment.
I M
A
O
P
T
OBSOLETE
