Hi si1268.si1268 said:The required water pressure at the nozzle in kN/m2 has been given as has the flow rate in m3/s. How do I work out the nozzle size?
If I could get a velocity I could use that in conjuction with flow rate to find the nozzle area.
The purpose of calculating nozzle size for a power washer problem is to determine the appropriate size of the nozzle needed to achieve the desired pressure and flow rate for the specific cleaning task at hand. This ensures efficient and effective cleaning while also preventing damage to the surface being cleaned.
The factors involved in calculating nozzle size for a power washer include the desired pressure and flow rate, the type and strength of the cleaning solution being used, the surface being cleaned, and the power rating of the power washer.
The formula for calculating nozzle size is: Nozzle Size (inches) = [GPM (Gallons Per Minute) x PSI (Pounds Per Square Inch)] / [3.117 x Power Rating (Horsepower)]. This formula takes into account the desired pressure and flow rate, as well as the power rating of the power washer.
The most common nozzle sizes for power washers are 2.5, 3.0, and 3.5, with 2.5 being the most commonly used. These sizes are generally suitable for most cleaning tasks and provide a good balance between pressure and flow rate.
Yes, it is important to also consider the nozzle angle, as this can affect the pressure and coverage of the water spray. A smaller angle will result in higher pressure, while a larger angle will provide broader coverage. In addition, the type and condition of the nozzle itself can also impact the cleaning performance, so it is important to regularly inspect and replace old or damaged nozzles.