Diaphragm valve - for blending softened and hard water

摘要

Apparatus for blending softened water with raw hard water, e.g. to improve the otherwise insipid taste, having a raw water feed pipe incorporating a throttling device, connected in parallel with a water softener which can be shut off, in which a shut-off device, partic. a diaphragm valve sensitive to the water pressure is provided downstream from the water softener.