Water recovery device for domestic hot water distribution installation in e.g. building, has derivation tap placed near sampling point and equipped with operation unit whose opening and closing controls are manual or automatic

摘要

The device has a pressure regulator (1) installed along a cold water tap (9). A bladder (4) made of butyl rubber is located inside a sealed storage container (2). A derivation tap (3) connects a hot water tap (8) and the cold water tap. The derivation tap is placed near a sampling point, and is equipped with an operation unit whose opening and closing controls are manual, semi automatic or automatic. The bladder is pre-inflated with compressible gas selected from nitrogen, carbon dioxide and Freon(RTM: hydrochlorofluorocarbon). An independent claim is also included for a method for recovery of water in a domestic hot water distribution installation.