METHOD AND APPARATUS FOR REDUCING PITTING IN COPPER WATER PIPES

摘要

Method and an apparatus for producing water with a constant degree of hardness. Hard, cold water is mixed with softened cold water to form a mixed flow with a predetermined hardness degree (of about 6 German hardness degree) resulting from the proportions between the two mutually mixed flows. The apparatus includes a shunt pipe (4), a mixing valve (5) and a flow meter (7). A control circuit (8) controls the setting of the mixing valve (5) in response to the prevailing flow.