©Copyright Task Force Tips LLC 2002-2020
5
LKB-100 September 17, 2020 Rev12
3.4 NOZZLE COUPLINGS
NH (National Hose Threads) threads are standard on all nozzles. Other threads such as NPSH (National Pipe Straight Hose) can be
specified at time of order.
4.0 FLOW CHARACTERISTICS
At each flow setting, the nozzle is set to a predetermined fixed orifice. Relationship of flow and nozzle pressure at each setting is shown
below. Contact the factory or visit the website (www.tft.com) for range and trajectory data.
The charts in this document give specific examples of pump pressure and flow for various hoses and lengths. Losses may vary due to
differences in hose construction resulting in flows different than shown. For situations or lengths of hose not listed on the chart,
approximate flows can be calculated using conventional hydraulics.
Figure 4.0
CAUTION
Mismatched or damaged waterway connections may cause equipment to leak or uncouple under
pressure. Failure could result in injury. Equipment must be mated to matched connections.
CAUTION
Dissimilar metals coupled together can cause galvanic corrosion that can result in the inability to
uncouple the connection, or complete loss of engagement over time. Failure could cause injury. Per
NFPA 1962, if dissimilar metals are left coupled together, an anti-corrosive lubricant should be
applied to the connection and the coupling should be disconnected and inspected at least
quarterly.
140
120
100
80
60
40
20
0
PRESSURE (PSI)
FLOW (GPM)
0
10
20
30
40
50
10
GPM
24
GPM
40
80
120
160
190
FLOW (L/min)
1
2
3
4
5
6
7
8
9
PRESSURE (bar)
140
120
100
80
60
40
20
0
PRESSURE (PSI)
FLOW (GPM)
0
20
40
60
80
100
20
GPM
60
GPM
80
160
240
320
FLOW (L/min)
1
2
3
4
5
6
7
8
9
PRESSURE (bar)
10, 24 GPM TWISTER OR BUBBLE CUP
20, 60 GPM TWISTER OR BUBBLE CUP
140
120
100
80
60
40
20
0
PRESSURE (PSI)
0
10
20
30
40
50
10
GPM
40
GPM
40
80
120
160
190
FLOW (L/min)
1
2
3
4
5
6
7
8
9
PRESSURE (bar)
FLOW (GPM)
140
120
100
80
60
40
20
0
PRESSURE (PSI)
0
20
40
60
80
100
20 GPM
95
GPM
80
160
240
320
FLOW (L/min)
1
2
3
4
5
6
7
8
9
PRESSURE (bar)
FLOW (GPM)
10, 40 GPM TWISTER OR BUBBLE CUP
20, 95 GPM TWISTER or BUBBLE CUP
or 95 GPM BUBBLE CUP
