Equipment
Common Equipment failures are foot valves, injector tips, and spray nozzles
Perform a titration
- Too low? – failure in foot valve or blockage at an injection tip or spray nozzle
- Too high? – injector tip or spray nozzle is worn and needs replacement
Perform Draw Test
- Too much product used? – injector tip or spray nozzle is worn and needs replacement
- Too little product used? – failure in foot valve or blockage at injection tip or spray nozzle
Foot valve
- Filters particles to prevent clogging of draw tube lines
- Maintains constant suction on draw line
- Prevents backflow of chemical into drum
- Test for proper function – Remove draw line from drum; If chemical empties out of the line, replace foot valve
Injector tips
- Subject to clogging as openings very small
- Carefully Remove tip and inspect for obstruction or damage, replace if necessary
Spray nozzles
- Create direction, spray and pressure within system
- Replacement of nozzles is necessary when loss of pressure negatively impacts chemical coverage
|
Nozzle Size |
Orifice |
40 |
100 |
250 |
500 |
600 |
700 |
800 |
1000 |
1200 |
1500 |
2000 |
2500 |
300 |
3500 |
4000 |
|
02 |
0.034 |
0.20 |
0.32 |
0.50 |
0.71 |
0.77 |
0.80 |
0.89 |
1.0 |
1.1 |
1.2 |
1.4 |
1.6 |
1.7 |
1.9 |
2.0 |
|
04 |
0.052 |
0.40 |
0.63 |
1.00 |
1.40 |
1.60 |
1.70 |
1.80 |
2.0 |
2.2. |
2.5 |
2.8 |
3.1 |
3.5 |
3.8 |
4.0 |
|
4.5 |
0.055 |
0.45 |
0.71 |
1.10 |
1.50 |
1.70 |
1.90 |
2.00 |
2.2 |
2.4 |
2.8 |
3.0 |
3.6 |
3.9 |
4.3 |
4.5 |
|
05 |
0.057 |
0.50 |
0.79 |
1.30 |
1.80 |
1.90 |
2.10 |
2.20 |
2.5 |
2.8 |
3.1 |
3.6 |
4.0 |
4.4 |
4.7 |
5.0 |
|
5.5 |
0.06 |
0.55 |
0.87 |
1.40 |
1.90 |
2.10 |
2.30 |
2.50 |
2.8 |
3.0 |
3.4 |
3.8 |
4.4 |
4.8 |
5.2 |
5.5 |
|
06 |
0.062 |
0.60 |
0.95 |
1.50 |
2.10 |
2.30 |
2.50 |
2.70 |
3.0 |
3.2 |
3.7 |
4.2 |
4.8 |
5.2 |
5.6 |
6.0 |
|
6.5 |
0.064 |
0.65 |
1.00 |
1.70 |
2.30 |
2.50 |
2.70 |
2.90 |
3.3 |
3.6 |
4.0 |
4.6 |
5.2 |
5.7 |
6.0 |
6.5 |
|
07 |
0.067 |
0.70 |
1.10 |
1.80 |
2.50 |
2.70 |
2.90 |
3.10 |
3.5 |
3.8 |
4.3 |
5.0 |
5.6 |
6.1 |
6.6 |
7.0 |
|
7.5 |
0.07 |
0.75 |
1.20 |
1.90 |
2.70 |
2.90 |
3.20 |
3.40 |
3.8 |
4.1 |
4.6 |
5.3 |
6.0 |
6.5 |
7.0 |
7.5 |
|
08 |
0.072 |
0.80 |
1.30 |
2.00 |
2.80 |
3.10 |
3.40 |
3.60 |
4.0 |
4.4 |
5.0 |
5.6 |
6.2 |
7.0 |
7.5 |
8.0 |
|
8.5 |
0.074 |
0.85 |
1.30 |
2.20 |
3.00 |
3.30 |
3.60 |
3.80 |
4.3 |
4.6 |
5.3 |
6.0 |
6.7 |
7.4 |
8.0 |
8.5 |
|
09 |
0.076 |
0.90 |
1.40 |
2.30 |
3.20 |
3.50 |
3.80 |
4.00 |
4.8 |
5.0 |
5.5 |
6.4 |
7.1 |
7.8 |
8.5 |
9.0 |
|
9.5 |
0.078 |
0.95 |
1.50 |
2.40 |
3.40 |
3.70 |
4.00 |
4.30 |
4.8 |
5.2 |
5.8 |
6.8 |
7.6 |
8.3 |
9.0 |
9.5 |
|
10 |
0.08 |
1.00 |
1.60 |
2.50 |
3.50 |
3.90 |
4.20 |
4.50 |
5.0 |
5.4 |
6.1 |
7.0 |
8.0 |
8.7 |
9.4 |
10.0 |
|
12 |
0.087 |
1.20 |
1.90 |
3.00 |
4.20 |
4.60 |
5.00 |
5.40 |
6.0 |
6.4 |
7.3 |
8.4 |
9.5 |
10.4 |
11.2 |
12.0 |
|
15 |
0.094 |
1.50 |
2.40 |
3.80 |
5.30 |
5.80 |
6.40 |
6.80 |
7.5 |
8.2 |
9.2 |
10.6 |
12.0 |
12.9 |
14.0 |
15.0 |
|
20 |
.0109 |
2.00 |
3.20 |
5.00 |
7.10 |
7.80 |
8.40 |
9.00 |
10.0 |
10.8 |
12.2 |
14.2 |
16.0 |
17.4 |
18.8 |
20.0 |
|
30 |
1.41 |
3.00 |
4.70 |
7.50 |
10.60 |
11.60 |
12.80 |
13.60 |
15.0 |
16.4 |
18.4 |
21.2 |
24.0 |
26.0 |
28.0 |
30.0 |
|
40 |
1.56 |
4.00 |
6.3 |
10.00 |
14.20 |
15.60 |
16.80 |
18.00 |
20.0 |
21.6 |
24.4 |
28.4 |
32.0 |
34.8 |
37.6 |
40.0 |
For specific information on your spray equipment and nozzles, contact your supplier
How to determine Nozzle size:
- Calculate GPM and PSI to determine nozzle size
- (Ex. 1200 PSI at 3.8 GPM = nozzle size of 07, see above chart)
After determining nozzle size, choose a degree of spray pattern:
- 15 = 15° (narrow)
- 25 = 25° (medium)
- 40 = 40° (wide)
Typical available spray patterns: 05, 15, 25, 40, 50, 65, 80
- Degree of spray does not affect nozzle volume