TFP852
Page 5 of 6
PLAN VIEW
ELEVATION VIEW
6
(1,8)
0
2
(0,6)
4
(1,2)
8
(2,4)
6
(1,8)
2
(0,6)
4
(1,2)
8
(2,4)
OBSTRUCTIONS
ALLOWED
OBSTRUCTIONS
ALLOWED
OBSTRUCTIONS
ALLOWED
OBSTRUCTIONS NOT ALLOWED
OBSTRUCTIONS
PER 4X RULE
MAXIMUM VER
TICAL DIST
ANCE FROM
TOP OF DEFLECTOR TO OBSTRUCTION
FEET (METERS)
(0,3)
1
0
(0,3)
1
(0,9)
3
(1,5)
5
0
6
(1,8)
2
(0,6)
4
(1,2)
8
(2,4)
10
(3,0)
12
(3,7)
14
(4,3)
6
(1,8)
2
(0,6)
4
(1,2)
8
(2,4)
10
(3,0)
12
(3,7)
14
(4,3)
OBSTRUCTIONS WITHIN AREA 5'-0" (1,5 m) SPHEREICAL RADIUS
BELOW TOP OF NOZZLE DEFLECTOR MUST BE LOCATED
MINIMUM 4 TIMES LONGEST DIMENSION OF OBSTRUCTION
FROM END OF DEFLECTOR (REF. FIGURE 6)
2.
OBSTRUCTIONS ALLOWED IN AREA ABOVE AND BELOW NOZZLE
DEFLECTOR AS DEFINED ON ELEVATION VIEW
3.
0 = CENTERLINE OF NOZZLE
1.
NOTES:
PLACE LARGE OBSTRUCTIONS (SIGNS, ETC.) PARALLEL TO
NOZZLE DISCHARGE IN AREAS BETWEEN NOZZLES
4.
MAXIMUM LA
TERAL DIST
ANCE FROM
CENTERLINE OF NOZZLE TO OBSTRUCTION
FEET (METERS)
DISTANCE FROM END OF DEFLECTOR TO OBSTRUCTION
FEET (METERS)
DISTANCE FROM END OF DEFLECTOR TO OBSTRUCTION
FEET (METERS)
0
OBSTRUCTIONS
ALLOWED
SEE ELEVATION VIEW
FOR OBSTRUCTION
ALLOWANCES
IN THIS AREA
2
1
1
1
1
3
3
END OF
TN-17 NOZZLE
DEFLECTOR
A ≥ 4C or 4D
A ≤ 60" (1,5 m)
APPLY GREATEST
VALUE
RULES:
OBSTRUCTION
D
C
A
GRAPH A
MODEL TN-17 HORIZONTAL SPRAY NOZZLE
OBSTRUCTION DATA
FIGURE 6
MODEL TN-17
HORIZONTAL SPRAY NOZZLE
OBSTRUCTION 4X RULE
