T-JOINT FOR CONNECTING ADAPTING BRANCH PIPE TO MAIN PIPELINE AND METHOD OF ITS MAKING

摘要

FIELD: pipeline engineering.;SUBSTANCE: method comprises manufacturing the thermoplastic joint member that has connecting pipe for the branch pipe and main part that corresponds to the bend of the main pipeline. The ring is cut out of the thermoplastic pipe whose diameter is similar to that of the main pipeline. The width of the ring should be equal to the length of the pipeline in the direction to the axis of the main section of the joining part. The ring is clamped on the welding table or cantilever and a part whose sizes correspond to these of the main part is cut out of the ring. The surfaces for butt welding and main section of the joining part are treated, and the surfaces treated for welding are heated up to the plastic state with the use of welding mirror. The welding mirror is removed and the surfaces are squeezed. The extending parts of the T-joint are butt-welded to the ring.;EFFECT: expanded functional capabilities.;10 cl, 6 dwg