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Spray nozzles & systems

What surface should the spray cover? How should the nozzle be positioned?

The position of the nozzle over the target (D) and the area to be covered by the spray (B) are important to know in order to choose the right spray angle (A). The spray angle is measured near the nozzle orifice and the droplets are immediately affected by external forces such as gravity, air and gas flow.

Four parameters are used to define spray coverage

Spray angle (A)

The spray angle is measured near the orifice of the nozzle. Since droplets are immediately affected by external factors (gravity, air and gas flow), this measurement is only useful when calculating spray coverage near the nozzle.

To calculate spray coverage at greater distances, we provide spray trajectory diagrams if needed.

Actual spray coverage (B)

Actual spray coverage at a specified distance (D) from the nozzle.

Effective spray angle (C)

The angle calculated from the actual coverage (B) at a distance (D).

Theoretical spray coverage (E)

The coverage at distance (D) if the spray moved in a straight line from the nozzle orifice.

Distance (D) in mm
Spray angle (A)501001502003004006008001000
10°91726355270105140175
20°18355371106141212282353
30°275480107161214322429536
40°3673109146218291437582728
50°4793140187280373560746933
60°581151732313464626939241155
70°7014021028042056084011201400
80°84168252336503671100713431678
90°100200300400600800120016002000
100°119238358477715953143019072384
110°143286428571857114317142285
120°173346520693103913862078
130°21442964385812871716
140°275549824109916482198
150°373746112014932239
170°11432286

Optimising the spray coverage

When we design a spray system that requires coverage over a large cross-sectional area, the spray is optimised to provide the most even coverage possible over the entire area.

Contact us if necessary.