PIPE JOINT Russian patent published in 1994 - IPC

FIELD: manufacture of fittings. SUBSTANCE: sealing collar is made of elastoplastic and has form "c" in cross section. Opposite tabs of collar are fitted on its edge by means of circular bead. Mounted outside the collar is split cylindrical envelope of housing with radial flanges which is provided with gates with tensioning screws and inner tongue. Tongue is located between collar and housing and closes longitudinal clearance of housing in area of flanges. Tabs before tightening up the envelope exceed nominal diameter of pipes being connected for tight faying to walls of pipes in tightening up the housing. Secured on one circular section of envelope is slide guide with curved surface overlapping other circular section of envelope. Clearance is shifted circumferentially relative to housing clearance which is overlapped on the outside under zone of screw of slide guide. EFFECT: enhanced reliability. 3 dwg