摘要 |
<p>The device has two mutually corresponding tube coupling parts (1,2) and a safety element for axial connection of the tube coupling parts. The tube coupling parts have inner rings (1i,2i) to be welded with inner tubes (7,8), outer rings (1a,2a) to be welded with jacket tubes (9,10) and a passage between the inner rings and the outer rings. One of the tube coupling parts is formed in a divided manner and has two separate components, such as an inner component and an outer component. The inner component is formed by the inner rings and has an outer thread. An independent claim is included for a method for connecting dual jacket tubes.</p> |