| 摘要 |
<p>The siphonal bung is comprised of a cylindrical body (6) provided with an inlet (1) and an outlet (3). Said body is partitioned by a core (11) comprising a screw (12) helically mounted on a tube (13) which is centered on the axis (7) of said body, the inlet and the outlet of said screw being arranged at the inlet and outlet of the bung, the screw (12) extending at least through 360° in order to provide, according to the means, one or a plurality of successive water heads.</p> |
