Description

PRESSURE COMPENSATION-AUTOMATIC PURGING

The 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 line, elevation differences or changes
in pumping pressure. Non-compensating emitters always emit a higher volume of water from the first
emitter in line as compared to last one, even on level terrain. This unequal distribution is unacceptable
and unnecessary with the Micro-Flapper.
Micro-Flapper pressure compensating, allow for smaller diameter mains and sub mains and
longer lateral lines, thus reducing overall system costs.
The Micro-Flapper diaphragms responsible for the pressure compensating action of the emitter and
allows for automatic purging(flushing) of the emitter. The orifice is wide open and allows purging until
the system is pressurized. It than partially closes to its regulating position. This action repeats itself when
the system is turned off. The orifice opens and trapped particles are flushed out. Frequent operation of
the system best utilizes this purging action.