Emitters for drip irrigation systems, micro-sprinklers and similars, of the pressure compensating type and also those types whose flow varies in relation to the changes in pressure

An emitter for discharging fluid from a conduit conveying fluid in an irrigation system, said emitter comprising a male section and a female section, said female section having a pivot insertable in said conduit with a passageway in said pivot providing for fluid communication between said conduit and emitter, a rod extending from said male section into said passageway and being formed to provide restricted passage of fluid from said conduit into said emitter so as to impede the passage of particles suspended in said fluid, a first decompression chamber formed between the male section and the female section and communicating with said passageway, a second decompression chamber in fluid communication with said first decompression chamber, means to create a cyclone like turbulence in the fluid flowing into said chambers, a particle collecting chamber formed around the periphery of said emitter, an opening providing for communication between said particle collecting chamber and said second decompression chamber, said opening being sized to permit the passage of particles from said second decompression chamber into said collecting chamber, an opening formed in the body of said emitter to provide for exit of particles from said particle collecting chamber, manually operable means to selectively provide for exit of said particles from the collecting chamber, and means combined with said male and female sections providing for discharge of fluid from said emitter.