Helpful Charts & Conversions

Nozzle size chart
Hose pressure loss chart
Common conversions

Pressure (bar)

Nozzie Size
0
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
02
0.91
2
2.5
2.8
3.2
3.5
3.7
4
4.2
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
6
6.2
6.4
6.6
6.7
6.8
6.9
7
7.1
7.13
7.4
7.5
7.6
03
1.09
3.1
3.7
4.3
4.8
5.3
5.7
6.1
6.3
6.8
7.1
7.4
7.7
8
8.3
8.6
8.9
9.1
9.3
9.5
9.7
9.9
10.1
10.3
10.5
10.6
11.2
11.4
11.6
11.8
04
1.19
4.2
5.2
5.9
6.6
7.3
7.8
8.4
8.9
9.4
9.8
10.3
10.7
11
11.5
11.9
12.2
12.6
12.9
13.3
13.6
13.9
14.2
14.5
14.8
15.1
15.4
15.7
16
16.3
045
 1.27 4.5 5.5 6.4 7.1 7.8 8.4 9 9.6 10.2 10.6 11 11.4 11.8 12.2 12.6 13 13.4 13.8 14.2 14.6 15 15.3 15.6 15.9 16.2 16.7 17.1 17.4 17.7
05
 1.35 5 6.2 7.1 8 8.7 9.4 10 10.7 11.3 11.9 12.4 12.9 13.4 13.9 14.3 14.7 15.1 15.5 15.9 16.3 16.7 17.1 17.5 17.9 18.2 18.6 18.9 19.2 19.6
055
 1.4 5.6 6.7 7.8 8.7 9.6 10.3 11.1 11.8 12.4 13 13.6 14.2 14.8 15.3 15.8 16.3 16.7 17.1 17.5 17.9 18.3 18.7 19.1 19.5 19.9 20.4 20.7 21.1 21.5
06
 1.47 6 7.6 8.6 9.6 10.4 11.3 12.1 12.8 13.6 14.2 14.8 15.4 16 16.6 17.1 17.6 18.1 18.6 19.1 19.6 20.1 20.5 20.9 21.3 21.7 22.3 22.7 23.1 23.5
065
 1.52 6.6 8 9.3 10.4 11.3 12.3 13.2 14 14.7 15.4 16.1 16.8 17.4 18 18.4 19.4 19.9 20.4 20.9 21.4 21.9 22.4 22.9 2304 23.8 24.1 24.6 25 25.5
070
 1.6 7.1 8.6 10 11.2 12.2 13.2 14.1 15 15.3 16.6 17.3 18 18.7 19.4 20 20.5 21.2 21.8 22.4 22.9 23.4 23.9 24.4 24.9 25.4 25.9 26.4 26.8 27.3
075
 1.65 7.6 9.3 10.7 13.1 14.2 15.2 16.1 16.9 17.8 18.6 19.3 20.1 20.8 21.5 22.2 22.8 23.4 24 24.6 25.2 25.8 25.5 26.3 26.8 27.3 27.9 28.4 28.9 29.4
08
 1.7 8 9.8 11.3 12.7 14 15.1 16.1 17.1 18 18.8 19.6 20.4 21.2 22 22.8 23.5 24.2 24.8 25.4 26 26.6 27.2 27.8 28.4 29 29.5 30.1 30.8 31.1
085
 1.85 8.5 10.4 12.1 13.5 14.8 1.6 17.1 18.1 19.1 20 20.9 21.8 22.6 23.4 24.1 24.9 25.6 26.3 27 27.7 28.3 28.9 29.5 30.1 30.7 31.4 31.9 32.5 33.1
09
 1.8 9.1 11.1 12.8 14.3 15.7 17 18 19.2 20.2 21.2 22.1 23 23.9 24.7 25.5 26.3 27.1 27.8 28.5 29.2 29.9 30.6 31.3 31.9 32.5 33.2 33.8 34.4 35
10
 1.9 10 12.3 14.2 16 17.4 18.9 20.1 21.4 22.5 23.6 24.6 25.6 26.6 27.6 28.5 29.4 30.2 31 31.8 32.6 33.4 34.1 34.9 35.6 36.3 36.9 37.6 38.3 38.9

Flow Rate (L/min)

Nozzle size chart
use the pressure and flow of your high pressure cleaner to work out the optimum nozzle size

Flow Rate (L/min)
 Hose Internal Diameter (I.D.)
1/4″ (6.4mm)
5/16″ (7.9mm)
3/8″ (9.5mm)
1/2″ (12.7mm)
bar
psi
bar
psi
bar
psi
bar
psi
10
5
73
1.5
22
–
–
–
–
12
7
102
2.2
32
–
–
–
–
15
10
145
3
48
1.4
20
–
–
16
12
174
4
58
1.7
25
–
–
18
14
203
4.6
67
2
29
–
–
20
17
247
5.5
80
2.5
36
–
–
21
18
261
6
87
2.6
38
–
–
25
25
363
8.5
124
3.6
52
–
–
30
35
508
12
174
5
73
1.1
16
35
44
640
15
218
6.6
96
1.5
22
40
60
870
19
275
8
116
2
29
50
90
1300
30
435
13
188
2.7
40

Hose pressure loss chart
Find out what you pressure loss would be over different size hoses and different lengths.

Pressure
psi (psi) X 0.0689 = bar
bar (bar) X 014.504 = psi
Flow Rate
Liters per minute (L/min) X 0.26417 = US gpm
bar (bar) X 3.785 = L/min
Length
Millimetres (mm) X 0.03937 = in
Metres (m) X 3.28083 = ft
Power
Kilowatts (kW) X 1.341 = hp
Horsepower (hp) X 0.7457 = kw

Common conversions
Formulas for common calcuations relating to high pressure cleaners.