TFP410
Page 6 of 10
ELEVATION
12"
8" MAXIMUM
TABLE C
SERIES LFII RESIDENTIAL HORIZONTAL AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS (TY1334)
AT THE HIGH POINT OF THE SLOPE AND DISCHARGING DOWN THE SLOPE
NFPA 13D AND 13R HYDRAULIC DESIGN CRITERIA
WET PIPE SYSTEMS
(Greater Than 2-Inch Rise for 12-Inch Run Up To 8-Inch Rise for 12-Inch Run)
Maximum
Coverage Area
(a)
Width x Length
(b)
Ft. x Ft. (m x m)
Maximum
Spacing
Ft. (m)
WET PIPE SYSTEM
Minimum Flow
(c)
and Residual Pressure
(
I
) Two sprinkler design with the sprinklers at the high point of the slope and positioned
to discharge down the slope.
Top-of-Deflector-to-Ceiling:
4 to 6 Inches (100 to 150 mm)
Top-of-Deflector-to-Ceiling:
6 to 12 Inches (150 to 300 mm)
155°F (68°C)
175°F (79°C)
155°F (68°C)
175°F (79°C)
12 x 12 (3,7 x 3,7)
12 (3,7)
I
12 GPM (45,4 LPM)
8.2 psi (0,57 bar)
I
12 GPM (45,4 LPM)
8.2 psi (0,57 bar)
I
13 GPM (49,2 LPM)
9.6 psi (0,66 bar)
I
13 GPM (49,2 LPM)
9.6 psi (0,66 bar)
14 x 14 (4,3 x 4,3)
14 (4,3)
I
14 GPM (53,0 LPM)
11.1 psi (0,77 bar)
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14 GPM (53,0 LPM)
11.1 psi (0,77 bar)
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17 GPM (64,3 LPM)
16.4 psi (1,13 bar)
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17 GPM (64,3 LPM)
16.4 psi (1,13 bar)
16 x 16 (4,9 x 4,9)
16 (4,9)
I
16 GPM (60,6 LPM)
14.5 psi (1,00 bar)
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16 GPM (60,6 LPM)
14.5 psi (1,00 bar)
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18 GPM (68,1 LPM)
18.4 psi (1,27 bar)
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18 GPM (68,1 LPM)
18.4 psi (1,27 bar)
16 x 18 (4,9 x 5,5)
16 (4,9)
I
19 GPM (71,9 LPM)
20.5 psi (1,41 bar)
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19 GPM (71,9 LPM)
20.5 psi (1,41 bar)
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21 GPM (79,5 LPM)
25.0 psi (1,72 bar)
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21 GPM (79,5 LPM)
25.0 psi (1,72 bar)
16 x 20 (4,9 x 6,1)
16 (4,9)
I
24 GPM (90,8 LPM)
32.7 psi (2,25 bar)
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24 GPM (90,8 LPM)
32.7 psi (2,25 bar)
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26 GPM (98,4 LPM)
38.3 psi (2,64 bar)
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26 GPM (98,4 LPM)
38.3 psi (2,64 bar)
(a). For coverage area dimensions less than or between those indicated, use the minimum required flow for the next highest coverage area
for which hydraulic design criteria are stated.
(b). The Width x Length dimension refers to Width (backwall where sprinkler is located) times Length (horizontal throw of sprinkler).
(c). The Minimum Flow requirement is based on minimum flow in GPM (LPM) from each sprinkler. The associated residual pressures
are calculated using the nominal K-Factor. Refer to Hydraulic Design in the Design Criteria section for details.
