Non return valve used for hot and cold water circuits

摘要

In a valve, the plastic spindle is one-piece with the stop disk (31). The plugs (4) stud (41) snaps into the spindle socket (33). It is held firmly, axially. Once in, teeth (322) snap into a groove (411). A chamfer (321) guides the conical leading edge (412). The stop disk ring flange joins the spindle through a conical contraction. A bulge (341) seats the spring (5). Pref. the plug (4) is of plastic, pref. polysulphone. The housing is of metal, pref. brass.