Pipe system for liquids, esp. for sanitary hot water circuits in buildings

摘要

The pipe system incorporates a feeder pipe leading from the hot water generator to the tap points. A circulating pipe branches off from the feeder pipe and returns to the hot water generator. A pump pumps the hot water round the circuit. The pipe system has inner and outer pipes (13,14) and sleeves (15) coaxially fixing the inner pipes in the outer pipes. At least two of the double pipes (18) each consisting of an inner and an outer pipe are joined by fittings. The sleeves of the double pipes are firmly joined by plug-in connections to the fittings.