End nozzles should be matched to the intermediate nozzles for uniform coverage. The rated flow of end nozzles is double that of the intermediate nozzles:

End Nozzle Model Number

Rated Flow
L/min at 80 KPa

Former Imperial
Model Equivalent

GPM at 12 psi

ES4

9.0

ES1

2.0

ES9

18.0

ES2

4.0

EA13

27.0

EA3

6.0

EA18

36.2

EA4

8.0

EB27

54.4

EB6

12.0

PRESSURE AT THE SPRAY BAR:

To give the designed rate of discharge, the pressure required at the nozzle orifice is approximately 80 kPa (0.83 Bar; 12 psi).

This pressure may be adjusted slightly to vary the discharge rate of the nozzles.

However the pressure at the nozzle orifice must never be less than 70 kPa (0.7 Bar; 10 psi). Below this pressure, the fan pattern and liquid distribution of the nozzle will not be correct.

 

Copley end spray - End Nozzles
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