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.
