Reliable GXLO Series Bulletin

Product Description
Reliable Model GXLO (extra-large orifice) upright and
pendent sprinklers are standard coverage, standard
response sprinklers that utilize a robust center strut, solder in
compression thermal element. These sprinklers are intended
for use in hydraulically calculated control mode density area
(CMDA) storage and non-storage occupancies in accordance
with the area/density curves of NFPA 13 or other applicable
standards.
The Model GXLO sprinkler is FM Approved as a standard
response storage and non-storage sprinkler when used in
accordance with FM Global Property Loss Prevention Data
Sheets.
For new installations, the sprinkler is provided with either 3/4-
inch NPT or ISO 7-R3/4 threads. The upright version is also
available with 1/2-inch NPT or ISO 7-R1/2 threads for retrofit
installations only. Sprinklers without guards are installed using
the Model H wrench.
For use as an intermediate level sprinkler, the Model GXLO
upright sprinkler is available with a factory installed water
shield. Various other water shields, guards, or guard/shield
options are also available for both upright and pendent
models (please refer to Technical Specifications on following
pages). Sprinkler guards or guard/shields may be installed
in the field or factory installed. Use of the Model JV sprinkler
wrench is required for installation where a guard is added to
the sprinkler prior to threading the assembly into a fitting.
Model GXLO Specifications
Sprinkler Identification
Style
Upright
Pendent
Listings and
Number (SIN)
R2921
R2916
www.reliablesprinkler.com
Upright
Model GXLO Series Sprinklers
Upright with Factory Installed Shield
Sensitivity
Approvals
cULus, FM
Standard Response
FM
Bulletin 129 August 2020
Model GXLO Series Sprinkler
Storage and Non-Storage Sprinklers
K11.2 (160 metric)
Pendent
K-Factor
11.2
(160 metric)
Table A