Spray Angle & Coverage Considerations and Calculator

Find the correct Steinen nozzle for a desired pressure and flow rate
Input desired Flow Rate:
Input existing system pressure (PSI):
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Find the flow rate for your Steinen nozzle at different pressures:
Input the flow rating for your Steinen nozzle:
Enter desired system pressure (PSI):
Your actual flow from your Steinen nozzle:

Find the correct Steinen nozzle to give a desired spray pattern width:
Input the spray distance in inches:
Input desired spray width in inches:
You need a Steinen nozzle with this spray angle:

Find the width of the spray pattern for a given Steinen nozzle:
Input the spray angle of your Steinen nozzle in degrees:
Input the spray distance in inches:
Your actual spray width from your Steinen nozzle at the set distance:

The spray angle does not hold for long spray distances. As illustrated in the figure below, the spray angle tends to collapse or diverge as you move away from the orifice. The theoretical coverage of spray patterns at various distances from the nozzle orifice is listed below. These values assume that the spray angle remains constant throughout the entire spray distance. The tabulated spray angles listed are approximate spray coverage using water. Spray distance varies with spray angle. Liquids more viscous than water form smaller spray angles, or solid streams, depending upon nozzle capacity, spray pressure, and viscosity. Liquids with surface tensions lower than water produce wider spray angles than those listed for water.

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Steinen 29 East Halsey Rd. Parsippany, NJ 07054
Phone: 973-887-6400 Fax: 973-887-4632 E-mail: inquiries@steinen.com