FIELD: gas, chemical and other industries; repair and reconditioning of ball cocks. SUBSTANCE: method consists in introducing sealing polymer paste into ball cock sealing unit followed by delay for completion of polymerization process. This paste is introduced into cavity of cock under pressure through drain pipe union when cock is placed in OPEN position forming the sealing ring-envelope in clearance between surface of sphere, cock body and seats in the course of polymerization of sealing paste. EFFECT: reduced wear of parts in "seat- sphere" contact area; increased service life of ball cocks. 2 cl, 4 dwg
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