| 摘要 |
<p>T-joint made of two pieces (12, 26) designed to fit around a first pipe. One (12) of the pieces has a tapped bore (14) for the connection of the second pipe. The piece (12) with the tapped bore (14) is in the shape of a tightenable half-collar having an internal surface (20) adapted to the external surface of the first pipe. The second piece (26) is in the shape of a bent rod with a screwthread (28, 30) at each end, each of which is designed to be received in a respective hole (36, 38) made in the tightenable half-collar and held there by means of a nut (32, 32) screwed onto the screwthread. The innermost end of the bore (14) is extended past the internal surface (22) of the half- collar in the form of a projection. A groove (22) is formed in the internal surface (20) of the half-collar around said projection (18). An elastic ring seal (24) is placed in said groove (22); its thickness in the direction of the depth of said groove is greater than the depth of said groove. <IMAGE></p> |
