Improved element for sealed wall feedthrough

摘要

The element has a membrane (M) comprising an annular boot (3), an outer annular zone (4) and transversal zones (11, 12) provided in a sealed manner. The zones are enclosed towards exterior by low resistance rings (21, 22), respectively. The boot of the membrane encloses the ring (22) and the zone (4) that extends between the boot and a rigid frame (K). The membrane has stiffness greater than that of the boot. The zone (4) has a fender (41) surrounding the boot towards the exterior and a peripheral zone (42) extending between the boot and the frame.