The Reliable Automatic Sprinkler Co., Inc.,
103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 132
Rev
. B
Bulletin 132
Rev
. B
Model GL 112
Quick Response
Upright and Pendent
Sprinklers
Quick Response Sprinklers
(SIN R3226)Upright
(SIN R3216) Pendent
Features
The Reliable Model GL 112 QR sprinkler offers
the opportunity for:
1. Compliance with FM requirements for QR
Sprinklers to be used in Racks. The GL 112
Upright uses the D-7 guard/shield. The GL
112 Pendent can be used with the D-8 guard
or the D-9 guard/shield. See Bulletin 208.
2. Also for use as a ceiling sprinkler per FM
Data Sheets 8-9.
3. Pipe size reduction.
4. Increasing densities with existing systems.
5. Intended for use as a “Quick Response”
storage sprinkler in hydraulic designed sys-
tems with a minimum pressure of 7 psi (0.5
bar) in accordance with the area density
curves of NFPA 13 applications.
6. K- Factor = 11.2 (160)
Listings & Approvals:
Approved by Factory Mutual (FM) as a storage sprinkler.
Product Description
The Reliable Model GL 112 Quick Response sprinkler uti-
lizes a levered fusible alloy solder link in 165°F (74°C), 212°F
(100°C). The sprinkler has been designed to control high
challenge fires in both palletized and rack storage occupan-
cies, utilizing relatively low water pressures. This sprinkler
is available with the standard ¾” NPT (R¾) thread for new
installation.
It has been proven in full scale fire testing, has complied
with the applicable mechanical and hydraulic sections of the
latest sprinklers standard, and has Factory Mutual Approval.
This product is intended for use as a “Quick Response”
storage sprinkler in hydraulic designed systems with a mini-
mum pressure of 7 psi (0.5 bar) in accordance with the area
density curves of NFPA 13* standards.
Design Criteria
The following criteria apply when designing an automat-
ic sprinkler system utilizing the Model GL 112 QR sprinkler
for NFPA 13* applications.
• Sprinkler spacing shall be a minimum of 6 ft. (1.8m)
• Sprinkler discharge pressure for NFPA 13* standard
and all Factory Mutual (FM) applications shall be a
minimum of 7 psi (0,5 bar).
• Factory Mutual (FM) Loss Prevention Data Sheets con-
tain requirements which differ from NFPA. The Model
GL 112 is Approved by Factory Mutual for installations
governed by Data Sheets 8-9 and 2-0.
The Model GL 112 QR sprinkler is intended for standard
flow. Pressure requirements and standard placement as
specified for NFPA storage requirements. The Model GL
112 QR sprinkler is not a “Large Drop” or “ESFR” sprinkler.
Temperature Ratings
Classi
fi
cation
Sprinkler
Rating
Maximum Ambient
Temperature
Frame
Color
°F
°C
°F
°C
Ordinary
Intermediate
165
212
74
100
100
150
38
66
Uncolored
White
* For sprinkler standards prior to 1999 edition of NFPA 13, use NFPA
standards 231, 231C, 231D & 231F.
Model GL 112 QR Upright 3/4” NPT
Model GL 112 QR Pendent 3/4” NPT
