STAR SPRINKLER INC.
Page 4
1-3.2.40
FIGURE 3
NOMINAL WETTING PATTERN
AT MINIMUM REQUIRED FLOW CONDITION
FOR 20’ x 20’ COVERAGE AREA
FIGURE 4
#4947 SPRINKLER SOCKET
#4948 WRENCH & SOCKET COMBINATION
FIGURE 5
#4300 PROTECTIVE CAP REMOVAL TOOL
DRIVE
3/8" SOCKET
ACCEPTS
WRENCH
RECESS
WRENCH
COMBINATION
WRENCH & SOCKET
#4948
#4947
SOCKET
8'
6'
4'
0'
2'
8'
6'
4'
0'
2'
10'
8'
6'
4'
2'
8'
6'
4'
2'
20' x 20' Coverage Area
19 GPM
Horizontal
Minimum Vertical
Distance from
Clearance
Sprinkler to
Below
Obstruction
Sprinkler
Below Sprinkler
Heat Collector,
Heat Collector, ft.
in.
More than 6.0
24
From 3.0 to 6.0
19
Between 2.0 and 3.0
16
From 1.0 to 2.0
13
Less than 1.0
10
TABLE C
MINIMUM VERTICAL CLEARANCE BETWEEN
TOP OF FREE STANDING OBSTRUCTION AND
SPRINKLER HEAT COLLECTOR
Horizontal
Maximum
Distance from
Vertical
Sprinkler to
Clearance
Obstruction
Below
Below Sprinkler
Sprinkler
Deflector, ft.
Heat Collector, in.
Less than 0.5
Not Permitted
0.5 to less than 1.0
0
1.0 to less than 2.0
1
2.0 to less than 2.5
2
2.5 to less than 3.0
3
3.0 to less than 3.5
4
3.5 to less than 4.0
6
4.0 to less than 4.5
7
4.5 to less than 5.0
9
5.0 to less than 5.5
11
5.5 to less than 6.0
14
TABLE B
MAXIMUM VERTICAL DISTANCE
FROM SPRINKLER HEAT COLLECTOR
TO BOTTOM OF CEILING OBSTRUCTION
OBSOLETE
