Sprayer Nozzle Tip Selection
The output capacity at 40 PSI would be GPM. A Delavan 804 will produce the same results. Likewise, a TeeJet 11004 and Delavan 1104 will both produce a 110 degree spray angle with an output capacity of GPM. For flood nozzles, the industry uses a standard pressure of 10 PSI when designating the spray output.