| 摘要 |
<p>PURPOSE: To provide a device for the automatic pulsating transmission of liquid for irrigation capable of being applied to an open circuit type transmission system and achieving uniform water distribution in almost any distances from a liquid source. CONSTITUTION: An upstream side 2 is connectable to the liquid source at a fixed pressure or a practically fixed pressure and a downstream side 3 is connectable to the water distribution network of an open circuit provided with a pressure sensitive secondary valve opened and closed correspondingly to pressure change so as to discharge the liquid for the irrigation. Further, in this irrigation system, the devices are connected to that water distribution network provided with the plural valves sensitive to the pressure change respectively having a transmission nozzle.</p> |
