6-Way filter backwash valve for swimming pools has rotating annular valve body divided axially into distribution chambers with apertures cooperating with apertures in central chamber and outer casing

摘要

The 6-way filter backwash valve comprises a central chamber (19) with water inlet (20). This is surrounded by an annular distribution chamber (32). A rotating annular valve (30) is mounted inside this which is divided axially into separate distribution chambers (31.a.1 - 31.a.3) and has apertures cooperating with similar apertures in the central chamber and outer casing (7).