| 摘要 |
<p>A female element (1) is described comprising a hollow internal body (2) having an end (3) provided with fastening means (5) to one of the pipes to be joined, a hollow external body (7) coaxial with said internal body (2) and having an end (8) which axially protrudes with respect to another end (4) of the internal body (2) opposite to that provided with fastening means (5), one rigid central stem (9) coaxially supported by said internal body (2) by means of a transversal perforated base (18) and having a widened end (10) near said protruding end (8) of the external body (7), an axially sliding sealing bush (12) coaxially arranged about said stem (9) and elastically stressed to be engaged with said widened end (10) of the stem (9) to prevent the passage of fluid within the female element (1), a cleaning bush (14) coaxially arranged about the sealing bush (12) and axially stressed in position so as to prevent the entrance of dirt about the sealing bush (12) and a lock sleeve (16) arranged about the protruding end (8) of the external body (7) and engageable with a complementary end of a male element to ensure the stable union of the two male and female elements of the fitting. The stem (9) is fixed to said base (18) by means of at least one half bush (25) radially fitted and axially locked in corresponding seats (26, 27) of said stem (9) and said base (18)</p> |
