FIELD: machine building.
SUBSTANCE: at repair of pipeline inlet and drain orifices are made in coupling. A sub equipped with a threaded orifice is installed in an inlet orifice. A device for connection with a similar axial orifice is attached to the sub. Substance is pressed into under-coupling space through the device for connection. A substance outlet channel is shut off with a plug screwed into the sub through the axial channel of the device for connection. A ball cock or collector can be used as the device for connection.
EFFECT: reduced time for repair.
4 cl, 6 dwg
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