1. Identify your equipment.
How many pounds per square inch (PSI) do your pumps produce? If you are using it to run a power washer system, it should put out between 2000 and 4000 PSI.
How many gallons per minute (GPM) does your cleaning system produce? This can vary between 2 and 8 GPM depending on the size of your equipment. How many orifices are on your surface cleaner? Smaller surface cleaners use one or two nozzles, while larger models can use 3 or 4.
2. Refer to the nozzle size chart.
Start by finding the PSI rating, which should be listed on the top of the chart and will read left to right.
In the column under your pumps’ PSI rating, the GPM numbers are listed vertically. Take your system’s GPM and divide it by the number of nozzles you will be using. For instance: if your system produces 6 GPM but your cleaner requires 3 nozzles, the GPM you look for on the chart is 6 divided by 3, or 2 GPM. Now, follow that row all the way to the left side of the chart and you will find the recommended nozzle size for your system.
3. Check your degree of spray.
The degree at which the water comes out of the nozzle directly affects the performance of your surface cleaner, but there is room for personal preference in this choice. Most owners opt for either a 15 or a 25 degree sprayer nozzle when cleaning a normal flat surface. 0, 40 and 60 degree spray nozzles are also available, but these are for more specialized applications.
Using the correct size of sprayer nozzle for your machine and the correct degree of spray for the job will affect your profitability in two ways; your surface cleaner will work more efficiently, and your system will last longer. Both of these factors will be good for your bottom line.
The publisher of these pages is in no way responsible for any damage caused to you, your pressure washer, anyone else, your property, or anyone else's property by trying to implement or by successfully implementing the above-mentioned performance and services.