| 摘要 |
1. A distribution tap made of an operating stem (1), a closing device (2) which is screwed into a taped cylinder (3) duly provided with a stuffing gland (4) and a fixing threaded part (5) with an imperviousness shouldering (6), characterized by the fact that the operating stem is provided with, at one of its ends, a conical closing device (2) which can work with a seat (8a) on the one hand and, on the other hand, with a part provided with a bevelled edge inside the mouth (3a) of the cylinder (3), the base (2a) of the cone (2) having an amperviousness joint (2c), and by the fact that the cylinder (3) is provided opposite to the stuffing gland (4) with an externally conical mouth (3b), in the prolongation of the fixing threaded part (5).
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