PREFA pipe clamp 80 For stability reasons, the distance between the pipe clamps may not exceed 3 m for a pipe diameter of up to 100 mm
and 2 m for larger diameters. A minimum distance of 20 mm from the wall
facilitates installation and prevents contamination from leaves and cobwebs. To prevent the downpipes from slipping, beads or lugs must be placed over the pipe clamps on all individual lengths.