Patent ID: 9388921
Filing Date: 2016-07-12
CPC Classification: F16L

Claim Text:
1. A plug-in piece ( 1 ) for the sealing connection of two mutually assigned cylindrical surfaces, comprising a substantially tubular support body ( 2 ) which, at the ends thereof has annularly encircling sealing elements which can each be brought into engagement with one of the cylindrical surfaces to be sealed in order to produce a tight connection, wherein at least one of the sealing elements is designed as a sealing bead ( 3 , 30 ) which annularly encircles the outer surface of the support body ( 2 ) and has a spherically curved sealing surface, wherein a radius of the sphere of the sealing surface ( 3 , 30 ) is selected in such a manner that a centre point of the sphere lies approximately on an axis of symmetry of the support body ( 2 ), wherein a deviation of the centre point of the sphere from the axis of symmetry is less than 10%.