Set of two coupled pipes - have peripheral strips pressed into grooves in coupling piece fitted in ends

摘要

The set of two pipes coupled together incorporate a cylindrical coupling piece (3) in their ends (1,2) towards each other. This piece has two or more peripheral grooves (4) spaced apart, while a peripheral strip (5) in each of the pipes is pressed into one of the grooves. A stop (6) can be formed on the piece between the grooves, against which the pipe ends bear, this typically comprising two peripheral protrusions with a peripheral groove between.