APRIL 2019
GFS-350
PAGE 2 of 4
DESIGN CRITERIA
The Globe Series GL-RES/DC Sprinkler is cULus Listed for
installation in accordance with this data sheet as well as the
applicable installation Standard being utilized.
Globe Residential Sprinkler Installation Guide
When conditions exist that are outside the scope of the pro-
vided criteria, refer to the Globe Residential Sprinkler Instal-
lation Guide (Document GFS-380) for recommendations
that may be acceptable to the authority having jurisdiction.
Hydraulic Design (NFPA 13D and 13R)
For systems designed to NFPA 13D or NFPA 13R, the min-
imum required sprinkler flow rate is given in Table A for the
coverage areas shown. The sprinkler flow rate is the min
-
imum required discharge from each of the total number of
“design sprinklers” as specified in NFPA 13D or NFPA 13R.
Hydraulic Design (NFPA 13)
The minimum required discharge from each design area
sprinkler shall be the greater of the following:
(1)
In accordance with minimum flow rates indicated in
TABLE A.
(2) In rooms or compartments greater than 800 ft
2
(74.3 m
2
), calculated based on delivering a minimum
of 0.1 gpm/ft
2
(4.1 mm/min) over the coverage area of
each sprinkler, calculated in accordance with the
S x L Rules for density area sprinklers.
(3) In rooms or compartments 800 ft
2
(74.3 m
2
) or less
(Defined as “Small Rooms”) calculated based on
de-
livering a minimum of 0.1 gpm/ft
2
(4.1 mm/min) over
the room or compartment using the area of the room
divided by the number of sprinklers in the room. (7 psi
minimum)
SIN
K-FACTOR
GPM/PSI
½
(lpm/bar
½
)
MAX.AREA OF
COVERAGE
FEET (m)
MINIMUM
PRESSURE
PSI (bar)
MINIMUM
FLOW
GPM (L/min.)
DEFLECTOR TO CEILING/
MOUNTING SURFACE
DISTANCE
INCHES (mm)
MINIMUM
DISTANCE
BETWEEN
SPRINKLERS
FEET (m)
GL4147
4.1
(59)
12 (3.7) x 12 (3.7)
7.2 (.50)
11 (42)
Smooth Ceilings
1/8 (3) to 5/8 (16) Max.
Beamed Ceilings - Adjacent
Allowed in ceiling.
Beamed Ceilings - In Beam
4” Maximum Beam Depth
1/8 (3) to 5/8 (16) Max.
8 (2.4)
14 (4.3) x 14 (4.3)
13.4 (.92)
15 (57)
16 (4.9) x 16 (4.9)
13.4 (.92)
15 (57)
GL4947
4.9
(70.6)
12 (3.7) x 12 (3.7)
7.0 (.48)
13 (49)
14 (4.3) x 14 (4.3)
8.2 (.57)
14 (53)
16 (4.9) x 16 (4.9)
8.2 (.57)
14 (53)
18 (5.5) x 18 (5.5)
12.0 (.83)
17 (64)
20 (6.1) x 20 (6.1)
16.7 (1.15)
20 (76)
TABLE A: NFPA 13, 13R, AND 13D
HYDRAULIC AND INSTALLATION DESIGN CRITERIA
FIGURE 1: 1/2” ADJUSTMENT DOMED PLATE
CONCEALED PENDENT
NOTE:
Deflector-to-Ceiling Distance Criteria reflects 2019 Edition of NFPA 13D and 13R.
