Method of fabrication of drip irrigation conduits

摘要

The droplet former (4), designed to be located at intervals to the inside of an irrigation pipe to control the flow of water through its outlets, consists of a plastic bar (5) with a water collection chamber (10) fed by a passage (9) and a labyrinth channel (8). The bar is attached to the inner surface of the irigation pipe, especially by welding, so that the collection chamber is aligned with a pipe outlet. The collection chamber has a central projection that lifts the wall of the irrigation pipe from the inside so that it can be trimmed to make an outlet with its edges in contact with the projection to form a valve. An independent claim is included for a method of manufacturing a water droplet former.