Reliable Automatic Sprinkler Co., Inc.,
103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 129
May 2019
Bulletin 129
May 2019
Model GXLO
Standard Spray
Standard Response
Storage and Non-storage Sprinkler
K11.2 (160 metric)
(SIN R2921) Upright
(SIN R2916) Pendent
Features
1. Upright cULus Listed as a Control Mode Density Area (CMDA)
sprinkler for storage & non-storage protection.
2. Upright and Pendent FM Approved as Standard-response,
storage and non-storage sprinklers.
3. Standard ¾-inch NPT or ISO 7-R¾ threads; optional ½-inch
NPT or ISO 7-R½ threads for upright retrofit applications only.
Listings & Approvals:
The following organizations provide Listings or Approvals
for Model GXLO sprinklers. See the Technical Data table
for listing and approvals applicable to each sprinkler.
1. Underwriters Laboratories, Inc. and Underwriters
Laboratories of Canada (cULus) - Upright only.
2. Approved by Factory Mutual (FM) as a storage and
non-storage sprinkler - Upright and Pendent.
UL Guide Number
VNIV
UL Listing Category
Sprinklers, Automatic and Open; Sprinklers for Storage
Protection (Control Mode Density Area)
Technical Data
Sprinkler
Type
Nominal K Factor
Sprinkler
Height
Approvals
Sprinkler
Identification
Number (SIN)
US
Metric
Upright 0.64
Orifice with
¾” NPT (R¾)
11.2
160
2.71”
(68.8mm)
cULus, FM
R2921
Upright
Retrofit 0.64
Orifice with
½” NPT (R½)
11.2
160
2.82”
(71.6mm)
cULus, FM
R2921
Pendent 0.64
Orifice with
¾” NPT (R¾)
11.2
160
2.71”
(68.8mm)
FM
R2916
Note:
This product has been tested and listed for storage applications
to qualify its use in lieu of 5.6K or 8.0K Factor sprinklers for the
protection of high-piled storage.
Product Description
The Reliable Model GXLO sprinkler is a center strut, solder
in compression, extra large orifice sprinkler that has been de-
signed for storage and non-storage applications. The Model
GXLO sprinkler is available in either an upright or pendent con-
figuration. The Model GXLO sprinkler is available with either
3/4-inch NPT or ISO 7-R3/4 threads. The Model GXLO Upright
is optionally available with either 1/2-inch NPT or ISO 7-R1/2
threads for retrofit applications only.
Design Criteria
The Model GXLO sprinkler is intended for use as a standard
response standard spray sprinkler in hydraulically designed
sprinkler systems with a minimum pressure of 7 psi (0.5 bar) in
accordance with the area/density curves of NFPA 13 or in ac-
cordance with FM Property Loss Prevention Data Sheets.
The Model GXLO sprinkler is not a “Large Drop” or “ESFR”
sprinkler.
Temperature Ratings
Classification
Sprinkler
Rating
Maximum Ambient
Temperature
Frame
Color
°F
°C
°F
°C
Ordinary
Intermediate
High
165
212
286
74
100
141
100
150
225
38
66
107
Uncolored
White
Blue
Model GXLO Upright
Model GXLO Pendent
Sprinkler
Guard or Water Shield
Listings &
Approvals
GXLO
Upright
D-6 Guard & Water Shield
cULus
D-7 Guard & Water Shield
FM
Water Shield
(factory installed)
GXLO
Pendent
D-8 Guard
FM
D-9 Guard & Water Shield
Optional Guards and Water Shields
