FIELD: construction, pipeline.
SUBSTANCE: invention pertains to the field of heating and water supply. Device protecting pipeline from freezing contains heat insulated pipeline with bleed-off from the pipeline actuating unit. Whereat actuating unit consists of water pipe cock threadedly secured of the branch pipe welded into the hot water pipeline and made capable of micro-circulating in the hot water pipe branch maintaining positive temperature inside the cock. Grip portion of water - pipe cock is made as an accordition boot internal surface whereof is cone-shaped, with one end of least two coils of channeled stainless steel pipe connected to it, by other end the coils are connected to the bottom. Provided that the bottom is connected with a stock containing a valve closing seating of the cock. There is a threaded opening in the bottom closed by a male screw with a gasket seal.
EFFECT: enhanced reliability of the device and simplified design of the construction.
1 dwg
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