| 摘要 |
<p>PCT No. PCT/FR89/00049 Sec. 371 Date Oct. 4, 1989 Sec. 102(e) Date Oct. 4, 1989 PCT Filed Feb. 7, 1989 PCT Pub. No. WO89/07727 PCT Pub. Date Aug. 24, 1989.The connection consists of a module (2) for connecting a pipe-line, free to swivel around a hollow screw (1) comprising a flap valve which is loaded by a weak return spring (5) to close against its sitting (3a) which constitutes the main passage of fluid flow through the apparatus. The flap valve (3) is integral with a rod (4), the free end of which is guided in the bore (10) of a plug (9), beyond a seal (6). The hollow screw also comprises means for conveying a small flow of fluid tapped from the sitting (3a) in order to fill an installation downstream of the apparatus, after which the flap valve (3) is opened by the effect of pressure. The apparatus is designed in two versions, one admitting pressure to the network via the module (2) and the other via the end of the hollow screw (1). Applications for pneumatic engineering.</p> |
