Improvements in or relating to welded joints between tubes

Abstract

Abstract 1,022,510. Welding by fusion. MANNESMANN A.G. Jan. 30, 1965, No. 4198/65. Heading B3R. [Also in Division F2] A welded spigot and socket joint between two tubes 1, 2 with protective linings 3, 4 has a spigot end 21 of the tube 1 extending into a sleeve 10 formed on the end of the tube 2; there is also a further sleeve 5 on the tube 1 extending to the sleeve 10 so that an annular chamber 7 is formed between the spigot 21 and the sleeve 10 wherein are provided a seal 11 and also heat insulation 8 between a circumferential weld joining the sleeves 5, 10 and the spigot 21, into which chamber the protective lining 3 extends outside tube 1 at least to the seal 11; the protective lining 4 extends similarly inside the sleeve 10. A locating ring for the seal 11 is welded on to the outside of the tube 1. In Fig. 1 the sleeves 5 and 10 are welded on to the tubes 1 and 2 and the seal is in the form of an O-ring. Figs. 2 to 7 (not shown) illustrate alternative constructions.

Inventors

• 👤 Horst Koehler
• 👤 Otto Mackensy
• 👤 Hubert Mehlem

Bibliographic Details