Tyco Fire Product CENTRAL ELO-GB QR Dry Pendent Instruction Manual

ELO-GB QR
Dry Pendent
Extra Large Orifice
Quick Response
Manufactured by: Central Sprinkler Company
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Product
Description
The Central Model ELO-GB QR Dry
Pendent Automatic Glass Bulb
Sprinklers are Extra Large Orifice
Quick Response Sprinklers are
designed for use in special
applications such as freezing
environments or in conditions where
sediment or foreign materials might
accumulate in ordinary drop nipples.
They are suited to meet the
challenges of flammable liquids and
aerosol storage, as well as other high
density applications. They provide an
advantage where large quantities of
water are needed at relatively low
water supply pressures.
Their large coefficient of discharge
provides a minimum flow of 30 gallons
per minute (113.7 Lpm) at the
minimum allowable discharge
pressure of 7 psi (0.48 bar). This
characteristic provides the opportunity
to reduce system cost through smaller
pipe sizing and under some
conditions to eliminate the need for a
booster pump and its accessories.
The Model ELO-GB QR Dry
Pendent Quick Response Sprinklers
incorporate the latest in heat-
responsive glass bulb technology.
The operating mechanism consists of
a liquid-filled 3 mm diameter frangible
capsule that is only 2.0 cm in length.
The Model ELO-GB QR Dry
Pendent Quick Response Sprinklers
are Listed by Underwriters
Laboratories as Extra Large Orifice
Sprinklers.
The Model ELO GB QR dry pendent
may be installed by using the correct
ELO-GB QR Dry Pendent
wrench on either the sprinkler wrench
boss or the barrel of the dry pendent.
Operation: The glass bulb capsule
operating mechanism contains a
heat-sensitive liquid that expands
upon application of heat. At the rated
temperature, the frangible capsule
ruptures thereby releasing the orifice
seal. The tube then drops down
slightly allowing the ball bearings to
fall out and the plug to drop, thus
allowing the water to flow.
Technical
Data
Model: ELO-GB QR Dry Pendent
Style: Flush, Recessed and
Extended
Wrench:
Offset (flush & extended)
Part #1068
Universal (recessed pendent)
Part #1069
Orifice Size: 0.64"
(16.3 mm)
K-Factor: See K-Factor Table on
page 2.
Thread Size: 1" N.P.T.
(25 mm)
Temp. Rating and Bulb Color:
Ordinary 155°F/68°C
Intermediate 200°F/93°C
High 286°F/141°C Blue
Approvals: U.L. ,ULC
Maximum Working Pressure:
175 psi (12.1 bar)
Factory Hydro Test: 100% at
500 psi (34.5 bar)
Standard Finishes: brass, chrome
plated
Corrosion-Resistant Coatings:
white painted and black
painted
Escutcheon: brass, chrome plated,
white or black painted
O P
(ELO)
.64"
(16.3mm)
Orifice Quick
Red
Green
Response Dry
Pendent
Automatic
Sprinkler
1-98
T
I M A
No. 5-12.0