Installation fitting for pipeline buried in underground, has spacer elements made of plastic, which are arranged between outer profile and inner profile along longitudinal axis of linkage

摘要

The installation fitting (X) has telescopic linkage (G) containing an outer profile (2) and an inner profile (1) which are movable relative to each other. The spacer elements (B,B1,B2) made of plastic, are arranged between the outer profile and the inner profile along the longitudinal axis of linkage. The spacer element (B) is extended over 20% of the overlapping area between the inner and outer profiles. The spacer elements (B1,B2) spaced apart from each other, are arranged at the upper and lower end regions between the inner and outer profiles.