TFP410
Page 5 of 10
Maximum
Coverage Area
(a)
Width x Length
(b)
Ft. x Ft. (m x m)
Maximum
Spacing
Ft. (m)
DRY PIPE SYSTEM
Minimum Flow
(c)
and Residual Pressure
Top-of-Deflector-to-Ceiling:
4 to 6 Inches (100 to 150 mm)
Top-of-Deflector-to-Ceiling:
6 to 12 Inches (100 to 150 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)
12 GPM (45,4 LPM)
8.2 psi (0,57 bar)
12 GPM (45,4 LPM)
8.2 psi (0,57 bar)
13 GPM (49,2 LPM)
9.6 psi (0,48 bar)
13 GPM (49,2 LPM)
9.6 psi (0,48 bar)
14 x 14
(4,3 x 4,3)
14
(4,3)
16 GPM (60,6 LPM)
14.5 psi (1,00 bar)
16 GPM (60,6 LPM)
14.5 psi (1,00 bar)
18 GPM (68,1 LPM)
18.4 psi (1,27 bar)
18 GPM (68,1 LPM)
18.4 psi (1,27 bar)
16 x 16
(4,9 x 4,9)
16
(4,9)
16 GPM (60,6 LPM)
14.5 psi (1,00 bar)
16 GPM (60,6 LPM)
14.5 psi (1,00 bar)
18 GPM (68,1 LPM)
18.4 psi (1,27 bar)
21 GPM (79,5 LPM)
25.0 psi (1,72 bar)
16 x 18
(4,9 x 5,5)
16
(4,9)
19 GPM (71,9 LPM)
20.5 psi (1,41 bar)
Not Applicable
21 GPM (79,5 LPM)
25.0 psi (1,72 bar)
21 GPM (79,5 LPM)
25.0 psi (1,72 bar)
16 x 20
(4,9 x 6,1)
16
(4,9)
23 GPM (87,1 LPM)
30.0 psi (2,07 bar)
Not Applicable
Not Applicable
Not Applicable
Sidewall sprinklers, where installed under a ceiling with a slope greater than a 0-inch rise for a 12-inch run to a slope up to a 2-inch
rise for a 12-inch run, must be located per one of the following:
• At the high positioned to discharge down the slope.
• Along the slope and positioned to discharge across the slope.
(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.
TABLE B
SERIES LFII RESIDENTIAL HORIZONTAL AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS (TY1334)
FOR HORIZONTAL CEILINGS
NFPA 13D HYDRAULIC DESIGN CRITERIA
DRY PIPE SYSTEMS
(Maximum 2-Inch Rise for 12-Inch Run)
ELEVATION
