Drinking water or sanitary water system

摘要

The drinking water or domestic water system comprises a piping system, which has a connection (1) to a public water supply network. The piping system has a flow pipe or ascending pipe (12) and a return piping (11) forming a closed circulation piping, in which a unit (3) for cooling the flowing water is integrated, by which the drinking or domestic water is cooled at a predetermined temperature. An independent claim is also included for a temperature controlled valve, particularly circulation valve for use in a cold drinking water or cold domestic water system.