METHOD OF MANUFACTURE OF BALL COCK Russian patent published in 2000 - IPC

FIELD: manufacture of fittings for main pipe lines; shutting-off high-pressure flows of working medium. SUBSTANCE: method consists in making the body, ball plug, seat seals and at least one branch pipe. Then remaining parts are fitted in body and branch pipe is connected with body. Prior to fitting the branch pipe in body, body shall be heated or branch pipe shall be cooled. Gasket made from elastic-deformation material is additionally laid between body and branch pipe. They connected by means of interference fit. EFFECT: enhanced strength of connection of body and branch pipe. 2 cl, 1 dwg