FIELD: construction, pipeline.
SUBSTANCE: invention pertains to pipeline transport and pipe reinforcement and may be used in assembling mainly of underground non-contact laying of hot-water system and low-temperature heating of pipelines and fittings made of metal and polymeric material. In pipes connection point containing metal fitting arranged inside polymeric pipe on the external surface whereat there is a coupling embracing the fitting. The coupling is made of metal with a skirt gapped against the polymeric pipe and covering its area beyond the fitting.
EFFECT: enhanced strength and durability of connection.
4 cl, 1 dwg
