©Copyright Task Force Tips LLC 2011-2019
LIG-012 March 28, 2019 Rev06
5
4.0 FLOW CHARACTERISTICS
4.1 FIXED FLOW
A fi xed fl ow G-Force nozzle has one fi xed discharge orifi ce and a fl ush setting. A fi xed fl ow G-Force is fl ush able with the selector
ring. Figure 4.2A-D shows fl ow and pressure graphs for the G-Force Fixed nozzles.
4.2 SELECTABLE FLOW
A selectable G-Force nozzle has several fi xed discharge orifi ces and a fl ush setting. A particular orifi ce is selected by rotating the
selector ring. Figure 4.2A-D shows fl ow and pressure graphs for the G-Force Selectable nozzles.
A
B
C
D
E
FLUSH
A
B
C
D
E
E
150 GPM @ 100 PSI
570 l/min @ 700 kPa (7 bar)
60
30
95
150
125
GPM @ 100 PSI
230
110
360
570
470
l/min @ 700 kPa (7 bar)
200
100
300
500
400
l/min @ 500 kPa (5 bar)
FIXED GALLONAGE
SELECTABLE GALLONAGE
0
20
40
60
80
100
120
140
0
20
40
60
80
100
120
140
160
180
200
220
Flow (gpm)
Pressure (psi)
0
1
2
3
4
5
6
7
8
9
0
100
200
300
400
500
600
700
800
Flow (LPM)
Pressure (BAR)
G**A**, G**C**, G**N** and GD**Q**
Figure 4.2A
1.5” / 38 mm G-Force 100 psi / 7 bar Fixed and Selectable nozzles
150 GPM @ 75 PSI
570 l/min @ 500 kPa (5 bar)
60
30
95
150
125
GPM @ 75 PSI
230
110
360
570
470
l/min @ 500 kPa (5 bar)
FIXED GALLONAGE
SELECTABLE GALLONAGE
A
B
C
D
E
E
0
20
40
60
80
100
120
140
0
20
40
60
80
100
120
140
160
180
200
220
Flow (gpm)
Pressure (psi)
0
1
2
3
4
5
6
7
8
9
0
100
200
300
400
500
600
700
800
Flow (LPM)
Pressure (BAR)
FLUSH
A
B
C
D
E
G**B**, G**D**, and GD**P**
Figure 4.2B
1.5” / 38 mm G-Force 75 psi / 5 bar Fixed and Selectable nozzles
3.3 NOZZLE COUPLINGS
Many inlet couplings such as NH (National Hose) or BSP (British Straight Pipe) can be specifi ed at time of order.
CAUTION
Nozzle must be mated to a hose line with matched threads. Mismatched or damaged threads may
cause nozzle to leak or uncouple under pressure and could cause injury.
CAUTION
Dissimilar metals coupled together can cause galvanic corrosion that can result in the inability
to unscrew the threads or complete loss of thread engagement over time. Per NFPA 1962, if
dissimilar metals are left coupled together an anti-corrosive lubricant should be applied to the
threads. Also the coupling should be disconnected and inspected at least quarterly.
3.4 USE WITH SALT WATER
Use with saltwater is permissible provided nozzle is thoroughly cleaned with fresh water after each use. The service life of the nozzle
may be shortened due to the eff ects of corrosion and is not covered under warranty.