Frustoconical screwthread for tubes

摘要: The assembly arrangement according to the invention concerns tubes which are used primarily in oil industry installations. It permits sealing of a male end female end, each provided with frustoconical screwthreads. region component comprises convex surface (18) for providing metal-metal connection (20) component, internal edge (19) is connected concave abutment (15) and external (21) region, having portion (24) parallel generatrix (11) tangential bottom threads screwthread. diameter such that prolongation (22) thread bottoms screwthread passes beyond said (21). Use ends by means sleeves.