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Choosing the Right Nozzle for Your Machine

 

The orifice size of the nozzle determines the operating pressure of your machine. As a rule of thumb, the smaller the orifice, the greater the restriction of water flowing through the machine. This cause the pressure to increase.

  • Choosing a nozzle with too large of an orifice will reduce operating pressure.
  • Choosing a nozzle with too small of an orifice will limit water flow and possibly create an excessive load on the machine.

Use the table below to select the properly sized nozzle for your machine. Determine the nozzle size by matching the operating pressure (PSI) of your machine to the gallons per minute (GPM).

Nozzle Orifice Size Hole Size  
Pounds Per Square Inch = PSI Level of Your Machine
 
500 PSI
600 PSI
700 PSI
800 PSI
1000 PSI
1500 PSI
2000 PSI
2500 PSI
3000 PSI
3500 PSI
4000 PSI
4500 PSI
5000 PSI
5500 PSI
6000 PSI
6500 PSI
7000 PSI
7500 PSI
8000 PSI
2 .034"/
0.86mm

 
.71
.77
.84
.89
1.0
1.2
1.4
1.6
1.7
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.5 .042"/
1.07mm
.9
1.0
1.0
1.1
1.3
1.6
1.8
2.0
2.2
2.3
2.5
2.7
2.8
2.9
3.1
3.2
3.3
3.4
3.5
3.0 .043"/
1.09mm
1.1
1.2
1.3
1.4
1.5
1.8
2.1
2.4
2.6
2.8
3.0
3.2
3.4
3.5
3.7
3.8
4.0
4.1
4.2
3.5 .048"/
1.22mm
1.3
1.4
1.5
1.6
1.8
2.2
2.5
2.8
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
4.6
4.8
4.9
4.0 .052"/
1.32mm
1.4
1.6
1.7
1.8
2.0
2.5
2.8
3.2
3.5
3.7
4.0
4.2
4.5
4.7
4.9
5.1
5.3
5.5
5.7
4.5 .055"/
1.40mm
1.6
1.7
1.9
2.0
2.3
2.8
3.2
3.6
3.9
4.2
4.5
4.8
5.0
5.3
5.5
5.7
6.0
6.2
6.4
5.0 .057"/
1.45mm
1.8
1.9
2.1
2.2
2.5
3.1
3.5
4.0
4.3
4.7
5.0
5.3
5.6
5.9
6.1
6.4
6.6
6.8
7.1
5.5 .060"/
1.52mm
1.9
2.1
2.3
2.5
2.8
3.4
3.9
4.3
4.8
5.1
5.5
5.8
6.2
6.4
6.7
7.0
7.3
7.5
7.8
6.0 .062"/
1.57mm
2.1
2.3
2.5
2.7
3.0
3.7
4.2
4.7
5.2
5.6
6.0
6.4
6.7
7.0
7.3
7.6
7.9
8.2
8.5
6.5 .064"/
1.63mm
2.3
2.5
2.7
2.9
3.3
4.0
4.6
5.1
5.6
6.1
6.5
6.9
7.3
7.6
8.0
8.3
8.6
8.9
9.2
7.0 .067"/
1.70mm
2.5
2.7
2.9
3.1
3.5
4.3
4.9
5.5
6.1
6.5
7.0
7.4
7.8
8.2
8.6
8.9
9.3
9.6
9.9
7.5 .070"/
1.78mm
2.7
2.9
3.1
3.4
3.8
4.6
5.3
5.9
6.5
7.0
7.5
8.0
8.4
8.8
9.2
9.6
9.9
10.3
10.6
8.0 .072"/
1.83mm
2.8
3.1
3.4
3.6
4.0
4.9
5.7
6.3
6.9
7.5
8.0
8.5
8.9
9.4
9.8
10.2
10.6
11.0
11.3
8.5 .074"/
1.88mm		 3.01 - - - 4.25 5.21 6.01 6.72 7.36 7.95 8.50 9.02 9.50 - - - - - -
9.0 .076"/
1.93mm
3.2
3.5
3.8
4.0
4.5
5.5
6.4
7.1
7.8
8.4
9.0
9.6
10.1
10.6
11.0
11.5
11.9
12.3
12.7
9.5 .078"/
1.98mm		 3.36 - - - 4.75 5.82 6.72 7.51 8.23 8.89 9.50 10.08 10.62 - - - - - -
10 .080"/
2.03mm
3.5
3.9
4.2
4.5
5.0
6.1
7.1
7.9
8.7
9.4
10.0
10.6
11.2
11.7
12.2
12.7
13.2
13.7
14.1
11 .083"/
2.11mm		 3.89 - - - 5.50 6.74 7.78 8.70 9.53 10.29 11.00 11.67 12.30 - - - - - -
12 .087"/
2.21mm
4.2
4.6
5.0
5.4
6.0
7.3
8.5
9.5
10.4
11.2
12.0
12.7
13.4
14.1
14.7
15.3
15.9
16.4
17.0
12.5 .089"/
2.26mm		 4.42 - - - 6.25 7.65 8.84 9.88 10.83 11.69 12.50 13.26 13.98 - - - - - -
13 .091"/
2.31mm		 4.60 - - - 6.50 7.96 9.19 10.28 11.26 12.16 13.00 13.79 14.53 - - - - - -
15 .096"/
2.44mm
5.3
5.8
6.3
6.7
7.5
9.2
10.6
11.9
13.0
14.1
15.0
15.9
16.8
17.6
18.4
19.1
19.8
20.5
21.2

 

Theoretical Spray Coverage (inches)

 

Spray Angle °
Distance from the nozzle orifice
2"
4"
6"
8"
10"
12"
15"
18"
24"
30"
36"
15
0.5"
1.1"
1.6"
2.1"
2.6"
3.2"
3.9"
4.7"
6.3"
7.9"
9.5"
25
0.9"
1.8"
2.7"
3.5"
4.4"
5.3"
6.6"
8"
10.6"
13.3"
15.9"
40
1.5"
2.9"
4.4"
5.8"
7.3"
8.7"
10.9"
13.1"
17.5"
21.8"
26.2

 

 
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