| 摘要 |
<p>The valve (4) has a body (5) divided into upper and lower compartments (5a, 5b) separated by a partition (5c), and a delaying pot (2) with a delaying chamber (25) whose periphery is provided with a groove (20) for filtering fluid discharged downstream of an auxiliary channel (6a). The channel is provided in the partition, where an outlet of the channel in the upper compartment constitutes an auxiliary seat (6b) with a section thinner than that of the groove. The chamber includes a piston (26) that carries a main clapper (23) and has a wiper seal (27) cooperating with the groove.</p> |
