| 摘要 |
<p>A check valve (8) for medical infusion lines and the like, including a diaphragm (9) made of elastic material inserted between a first and a second tubular connector (2, 3) and acting on an annular valve seat (16) to keep the check valve (8) normally closed. The diaphragm (9) includes an annular peripheral section (10) and a central disc (11), connected to the peripheral section (10) via a crown of spaced-out arms (12). The disc (11) is moulded with a thin, axially projecting, circumferential sealing lip (13a, 13b) on one face or, more opportunely, on both faces. <IMAGE></p> |
