Sleeve tube for leading cables and pipework through concrete walls and ceilings holds an annulus seal to seal and retain a cable or pipework

摘要

A sleeve tube forms a plastic tube (2) and has a lengthwise slit (5) running in its lengthwise direction next to its end that holds an annulus seal (3). The plastic tube is encased by a rubber collar (8) on its inner side (6) and its outer side next to its end (4).