Vacuum tight connection between two flanged pipes - has one pipe with larger inner diameter than sealing ring and second pipe

摘要

The smaller diameter pipe (2) is pushed loosely into the larger diameter flange pipe (1) and a circumferential sealing lip is fixed vacuum tight with an axially directed sealing edge on the loosely inserted pipe. The sealing edge is then pressed into the sealing ring by screwing from outside on the loosely inserted pipe. Screwing can be undertaken by a screw-on nut which is tightened against the flange with the smaller inner diameter. A support ring can be set between the sealing ring and smaller flange in the area opposite the sealing lip of the loosely inserted pipe. ADVANTAGE - Vacuum tight connection without having to undertake assembly work in the vacuum area.