The Reliable Automatic Sprinkler Co., Inc.,
103 Fairview Park Drive, Elmsford, New York 10523
Model F1FR56-300 QREC Series
300 psi (20,7 bar) Rated
Quick Response
Extended Coverage Spray
Bulletin 030
Rev
.
C
Bulletin 030
Rev.
C
Model F1FR56-300
Extended Coverage Sprinklers
Sprinkler Types
• Pendent
• Recessed Pendent F1/F2/FP
• Concealed Pendent
Approval Organizations
1. Listed by Underwriters Laboratories, Inc. and
Certified for Canada (cULus)
UL Listing Category
Sprinklers, Automatic & Open
Quick Response Sprinkler
UL Guide Number
VNIV
Product Description
Reliable Models F1FR56-300 QREC and F1FR56-300
QREC recessed pendent sprinklers are high pressure
rated automatic sprinklers which can handle a maximum
service pressure of 300 psi (20,7 bar).
The Reliable Model F1FR56-300 QREC Quick Response
Extended Coverage Concealed Sprinkler is an attractive,
low profile concealed sprinkler assembly. This sprinkler
assembly utilizes a Model F1FR56-300 QREC pendent
sprinkler in a Model CCP cup and push-on thread-off
cover plate assembly. The cup is securely factory thread-
ed on the sprinkler’s inlet end. The assembly is shipped
with a protective cap. The sprinkler and cup are easily in-
stalled into the sprinkler fitting using the Model RC1 Sprin-
kler Wrench. The cover plate assembly is attached to the
sprinkler cup using a flexible tooth threaded engagement.
The cover plate is attached to the skirt using 135°F (57°C)
ordinary temperature classification solder.
When the ceiling temperature rises, the solder holding
the cover plate melts, allowing the release of this part and
thus exposing the Model F1FR56-300 QREC sprinkler in-
side to the rising ambient temperature.
These Models are quick response sprinklers which uti-
lize a 3.0mm frangible glass bulb. These sprinklers have
demonstrated response times in laboratory tests which are
five times faster than standard response sprinklers. This
quick response enables Model F1FR56-300 QREC sprin-
klers to apply water to a fire much faster than standard
sprinklers of the same temperature rating.
Recessed QREC
Pendent F1/F2
QREC Pendent
The glass bulb contains an accurately controlled amount
of special fluid hermetically sealed inside a precisely man-
ufactured glass capsule. This glass bulb is specially con-
structed to provide fast thermal response.
At normal temperatures, the glass bulb contains fluid in
both the liquid and vapor phases. The vapor phase can
be seen as a small bubble. As heat is applied, the liquid
expands, forcing the bubble smaller and smaller as the
liquid pressure increases. Continued heating forces the
liquid to push out against the bulb, causing the glass to
shatter, operating the waterway and allowing the deflector
to distribute the discharging water.
The temperature rating of the sprinkler is identified by the
color of the glass bulb.
Application
The most common applications for Model F1FR56-300
QREC Sprinklers will be in fire protection systems for high
rise buildings where a quick response rating is required
and the pressure entering the sprinkler system is in excess
of 175 psi (12 bar). The use of these sprinklers will provide
the opportunity to reduce or eliminate the need for pres-
sure reducing valves.
Concealed QREC Pendent
Recessed QREC
Pendent FP
