Drip irrigation emitter

摘要

A drip irrigation emitter receives liquid flowing in an irrigation pipe at an inlet pressure and emits the liquid out of the emitter at an outlet pressure lower than the inlet pressure. The emitter has a flow path through which the liquid flows in the emitter, wherein below a threshold pressure of liquid in the pipe the emitter is adapted to emit a regulated flow of liquid out of the emitter, and above the threshold pressure of liquid in the pipe the emitter is adapted to emit a non-regulated flow of liquid out of the emitter.

主权项

1. A drip irrigation emitter comprising:
an inlet through which liquid enters the emitter from an irrigation pipe, an outlet communicating with the outside environment, a flow path extending between the inlet and outlet, said flow path comprising pressure reducing flow parts, a venting zone and a regulating zone, the regulating zone for regulating the flow of liquid exiting the emitter via the outlet, the emitter further comprising a duct that is adapted to provide fluid communication between the venting zone and the outside environment, wherein the duct allows fluid to bypass the regulating zone and the outlet at pressures above a threshold pressure of liquid in the pipe.