FIELD: machine building.
SUBSTANCE: according to procedure surface of isolated coupling is prepared and rolled adhesive material is applied on prepared surface. Material is heated to softening; a section of thermo-contracting polymer band is placed on a softened layer. Ends of the band are connected with overlap, thereby forming a collar. A locking plate is put on the point of ends connection; further, the collar is thermo-contracted.
EFFECT: raised adhesion of insulating collar to surface of coupling and increased period between repair operations for re-insulating coupling of pipeline.
11 cl
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