FIELD: pipelines.
SUBSTANCE: invention relates to shutoff pipeline valves. Device includes a high-pressure metal cylinder, in the upper part of which there is a filler neck for filling a defrosting liquid - butyl alcohol, and a discharge ball valve fixed by means of a threaded connection. Supply pipeline is welded in the lower part of the cylinder for connection of the cylinder to the drain line of the valve with a supply ball valve and a transition union installed on the pipeline.
EFFECT: efficient and fast removal of ice plugs and restoration of serviceability of fittings.
1 cl, 2 dwg
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