FIELD: machine building.
SUBSTANCE: group of inventions relates to valves industry, and is intended to seal the ball valve with top connector. Sealing assembly is installed in the valve with ball gate. The sealing assembly includes a lock bushing (46) located in the internal cavity (42) of the valve body, and equipped with channel, and one or several parts of the sealing assembly. One element of the sealing assembly contains first flange equipped with thread hole. One element of the sealing assembly is connected with lock bushing using a captive screw, that passes through the thread hole in the first flange in the lock bushing channel. There is option of the sealing assembly for the valve with ball gate, and method of such sealing assembly installation.
EFFECT: group of inventions improves the operation reliability due to the sealing assembly installation and replacement via the hole for bonnet in the valve body without the necessity of valve disconnection from the pipeline.
20 cl, 9 dwg
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RU2147351C1 |
