TUBE COUPLING FOR CONNECTING AN OBJECT TO ONE END OF A TUBE IN A UHV TIGHT MANNER AND VESSEL WITH SUCH A TUBE COUPLING

摘要

The invention relates to a tube coupling (TC2) for connecting an object (22) to one end of a tube (20) in a UHV tight manner, withstanding pressures up to several hundred bars and accommodating temperature differences from heating or cooling, said tube coupling (TC2) comprising said tube (20) and a tube fitting (10), wherein said tube fitting (10) comprises a basically cylindrical body (11 ) with a first central bore for receiving said tube (20), such that said tube (20) is axially supported by a radially extending shoulder (18) at the inner end of said first central bore, and wherein said tube (20) is pressed with its end face against said radially extending shoulder (18) by means of a gripping arrangement (1 3, 14, 15). The vacuum capability is achieved with simple components by providing a gasket (21 ) between said end face of said tube (20) and said radially extending shoulder (18) at the inner end of said first central bore (16).