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.

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

Spray Pattern

Spray Angle

% Impact/Sq.In. of Theoretical Impact*

2"

4"

6"

8"

10"

12"

15"

18"

24"

30"

36"

FAN

15

30%

15

0.5"

1.1"

1.6"

2.1"

2.6"

3.2"

3.9"

4.7"

6.3"

7.9"

9.5"

FAN

25

18%

25

0.9"

1.8"

2.7"

3.5"

4.4"

5.3"

6.6"

8"

10.6"

13.3"

15.9"

FAN

40

12%

40

1.5"

2.9"

4.4"

5.8"

7.3"

8.7"

10.9"

13.1"

17.5"

21.8"

26.2"

FAN

50

10%

50

1.9"

3.7"

5.6"

7.5"

9.3"

11.2"

14"

16.8"

22.4"

28"

33.6"

FAN

65

7%

65

2.5"

5.1"

7.6"

10.2"

12.7"

15.3"

19.2"

22.9"

30.5"

38.2"

45.8"