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Pressure
compensation/ Automatic purging
The Irriline Micro Flapper is fully pressure
compensating. The output of each emitter is not affected by reasonable
pressure losses due to friction loss in lateral and main lines, elevation
differences or changes in pumping pressure. Non Compensating emitters always
emit a higher volume of water from the first emitter in the line as compared
to the last one, even on level terrain. This unequal distribution is
unacceptable and unnecessary with the Micro Flapper.
The pressure compensating Micro Flapper allows for smaller diameter mains
and sub mains and longer lateral lines thus reducing over all system costs.
Seldom are expensive pressure regulating valves required as each emitter
acts as its own pressure regulator.
The Micro Flapper diaphragm is responsible for the pressure compensating
action of the emitter and also allows for automatic purging (flushing) of
the emitter. The orifice is wide open and allows purging until the system is
pressurized. It then partially closes to its regulating position. This
action repeats itself when the system is turned off. The orifice opens and
trapped particle are flushed out. Frequent operation of the system best
utilizes this purging action. |
