2-98
PRO-QR
Omega
Prohibitor
™
QR
Institutional Pendent & Sidewall
Automatic Sprinklers
Manufactured by: Central Sprinkler Company
451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Product
Description
The Omega Prohibitor™ QR series
of automatic sprinklers have been
specifically designed for use in
institutional occupancies, such as
correctional facilities and mental health
facilities, where the occupants may
attempt to employ the fire sprinklers for
the purpose of self-inflicted injury.
Both pendent and horizontal sidewall
styles of Prohibitor™ QR sprinklers are
recessed into the mounting surface.
Only a small portion of the heat
collecting fin assembly and the tip of
the deflector on the horizontal sidewall
project into the protected space. The
fin assembly has an average break-
away load of 68 lbs. (30.8 kg), and a
maximum break-away load of 85 lbs.
(38.6 kg) Unlike other institutional
sprinklers, the escutcheon plate and
optional closure plates are firmly
attached to the recessed sprinkler body
with tamper resistant retaining screws.
The Omega Prohibitor™ QR
sprinklers are designed with an
aesthetically pleasing, low profile
silhouette. They operate five to six
times faster than standard sprinklers
and offer a high degree of protection
for human life. They feature a spray
pattern that has been shown to be
effective in the control or
extinguishment of fire.
The Model C-1A PRO QR is a
pendent style sprinkler Listed for quick
response applications. The Model
HEC-12 PRO QR is a horizontal
sidewall sprinkler Listed for quick
response sidewall applications with the
deflector positioned 4"(101.6 mm) to
12"(304.8mm) below the ceiling.
For all Models of Prohibitor™ QR
sprinklers, an optional 4
1
⁄
2
" diameter x
1
⁄
8
" (114.3 mm x 3.2 mm) thick security
closure plate is
available for use where
additional security is warranted. The
security closure plate fits between the
base of the escutcheon and the
mounting surface.
For all Models of Prohibitor™ QR
sprinklers, an optional 3
5
⁄
8
" (92.1mm)
diameter light gauge escutcheon
closure plate is available, for use
where the wall or ceiling penetration is
greater than the recommended 2
1
⁄
4
"
(57.2 mm) diameter. The escutcheon
closure plate fits between the base of
the escutcheon and the mounting
surface.
For all Models of Prohibitor™ QR
sprinklers, the optional Ident-A-Fire™
feature is available to provide an alarm
signal upon activation of the sprinkler.
Please see the Central Sprinkler
Corporation Ident-A-Fire™ bulletin.
All Prohibitor™ QR sprinklers are
available in two standard finishes,
chrome and brass plated. Their
mating escutcheon and closure plates
are available in three standard fin-
ishes, brass, chrome and white, with
additional special finishes available.
(Note: The Prohibitor™ QR Sprinklers
are also available for standard com-
mercial spacing and response time
with a smaller heat fin design. See the
appropriate Central bulletins.)
Operation: A fusible alloy pellet is
compressed with a bearing disc into a
copper housing by a ball plunger. Heat
is absorbed by the heat collecting fins
and conducted to the alloy pellet. At
the rated temperature the alloy melts,
causing the ball plunger to drop,
freeing balls from the retaining groove.
This movement allows system water
pressure to force the orifice sealing
mechanism and deflector assembly
open. Water is then discharged in a
designed flow pattern.
1
⁄
2
"
(12.7mm)
Orifice
Pendent or
Horizontal
Sidewall
Automatic
Sprinklers
No. 6-5.0
Security Closure Plate
(optional)
OBSOLETE
