Tapping stop valve for water, sewerage and gas pipework has a bottom shell as a counter space and a top shell with a connection piece

摘要

A top shell (30) with a connection piece and a bottom shell (20) as a counter space have shoulders (22,32) for linking the top and bottom shells by means of screws (40a-40c) and nuts (50a-50c). Each nut has a housing with a recess for retaining a core nut in a non-positive manner as well as a pull-off nut accessible from outside. A break-off point interlinks the core and pull-off nuts.