Nozzle Size Calculator
Enter your machine's rated flow (GPM) and pressure (PSI) to find the correct nozzle orifice size, then pick the matching Suttner nozzle by spray angle.
Nozzle Size = GPM × √(4000 ÷ PSI). Round up for more flow (general cleaning), down for more pressure (industrial / paint & rust). The spray angle (0° red, 15° yellow, 25° green, 40° white) uses the same orifice size.