Foam Injector size guide.
Use the below chart to help you select the correct injector size.
Pressure
Flow
| 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 170 | 180 | 190 | 200 | 210 | 220 | 230 | 240 | 250 | ||
| 10 |
2.2 (15) |
2.0 (15) |
1.8
(13) |
1.7
(10) |
1.6
(075) |
1.5 (07) |
1.4
(07) |
1.3
(05) |
|||||||||||||||||
| 11 |
2.2 (15) |
2.0 (15) |
1.9 (13) |
1.8 (13) |
1.7
(10) |
1.6
(075) |
1.5 (07) |
1.4
(07) |
1.3
(05) |
||||||||||||||||
| 12 |
2.2 (15) |
2.1 (15) |
2.0 (15) |
1.9 (13) |
1.8 (13) |
1.7
(10) |
1.6
(075) |
1.5
(07) |
1.4
(07) |
1.3 (05) |
|||||||||||||||
| 13 |
2.2 (15) |
2.1 (15) |
1.9
(13) |
1.8
(13) |
1.7
(10) |
1.6
(075) |
1.5
(07) |
1.4
(07) |
14 |
2.2 (15) |
2.1 (15) |
2.0 (15) |
1.9
(13) |
1.8
(13) |
1.7
(10) |
1.6
(075) |
1.5
(07) |
1.4
(07) |
|||||||
| 15 |
2.2 (15) |
2.1 (15) |
2.0 (15) |
1.9
(13) |
1.8
(13) |
1.7
(10) |
1.6
(075) |
1.5
(07) |
1.4 (07) |
||||||||||||||||
| 16 |
2.2 (15) |
2.1 (15) |
2.0
(15) |
1.9 (13) |
1.8
(13) |
1.7
(10) |
1.6
(075) |
||||||||||||||||||
| 18 |
2.3 (20) |
2.2 (15) |
2.1
(15) |
2.0
(15) |
1.9
(13) |
1.8
(13) |
1.7
(10) |
1.6 (075) |
|||||||||||||||||
| 19 |
2.3 (20) |
2.3 (20) |
2.2 (15) |
2.1
(15) |
2.0
(15) |
1.9 (13) |
1.8
(13) |
1.7
(10) |
|||||||||||||||||
| 21 |
1.9
(13) |
1.8
(13) |
1.7
(10) |
||||||||||||||||||||||
Using the chart
You will need to know the flow rate and pressure of the pressure washer or system that the injector is to be installed.
Firstly select the closest flow rate (round up if required)
Then move right across the chart until you are at the closest pressure column.
The top number (1.6) is the injector size.
For foam injectors not using compressed air the number in brackets underneath is the correct ST75 foam lance size required.
| Alternative | ||||
| Injector Size | Injector Part No | ST75 Size | ST75 Foam Lance | ST72 Foam Lance |
| 1.3 | 200160500 | 05 | 200075576 | 200072633 |
| 1.4 | 200160505 | 07 | 200075572 | 200072633 |
| 1.5 | 200160510 | 07 | 200075572 | 200072633 |
| 1.6 | 200160515 | 075 | 200075572 | 200072633 |
| 1.7 | 200160520 | 10 | 200075573 | 200072625 |
| 1.8 | 200160525 | 13 | 200075578 | 200072625 |
| 1.9 | 200160530 | 13 | 200075578 | 200072625 |
| 2.0 | 200160535 | 15 | 200075579 | 200072629 |
| 2.1 | 200160540 | 15 | 200075579 | 200072629 |
| 2.2 | 200160545 | 15 | 200075579 | 200072629 |
| 2.3 | 200160550 | 20 | Please Contact | 200072629 |