| 摘要 |
<p>A drip feed device for irrigation purposes comprising a body (25) having an inlet (32) on one side and an annular wall (27) on the other, engaged by a cap (17) having an outlet (18) on one side and an annular wall (20) on the other, to engage the annular wall (27) on the body (25) and housing in a chamber (16) formed between them a button (1) having circular flow paths (5) on each side with flow-restricting baffles (10 and 11) which overlap in the flow paths (5) to give counter direction flow around the baffles (10 and 11)</p> |
