Solar collector pipe bushing - has elastic bellows joined to pipe at free end for sealing internal chamber

摘要

The pipe guide is for a pipe containing a heating agent through the foam insulation of a solar collector, connecting the absorber system shut off from the atmosphere with an external piping system. The guide (19) is clad at least partly with an elastic sealing bellows (20), whose free end is joined to the pipe (18), sealing off the absorber system chamber (15). The bellows can be of material resistant to heat and ageing, and of hollow cylindrical shape, inverted into a U-section.