Nozzle Flow vs Pressure and Tip Selection
Flow at the operating pressure from a tip's catalog flow via the square-root law, and the pressure that would hit a target flow (flagged outside the flat-fan band). Pressure is a fine-tuning lever -- change tips to change the rate. The EPA label is the law (FIFRA).
Formula and source
New flow = rated flow x sqrt(operating pressure / rated pressure); required pressure for a target flow = rated pressure x (target flow / rated flow)^2.
Nozzle-flow square-root relation (standard spray-nozzle hydraulics), by name; USDA / land-grant extension sprayer-calibration guidance.
Audience
This tile is built for agriculture and the adjacent professions in the Agriculture and Forestry group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.
Related tiles
Posture
Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.