| 摘要 |
<p>The mixer fitting (10) has a shut-off valve (22) for hot water and a shut-off valve (24) for cold water. These shut-off valves (22, 24) are constructed as membrane valves and each have an auxiliary valve (62, 62') provided in the servo space (50). Permanent magnets (76) are provided to operate these auxiliary valves (62, 62'), which permanent magnets can pivot about the axis (80') into and out of the effective region onto the closing elements (64) of the auxiliary valves (62, 62'). To open the shut-off valves (22, 24), the pivoting body (78) is pivoted with the permanent magnet (76) by means of the drive (94) into the region of the closing elements (64), as a result of which these are drawn against the permanent magnets (76), thus opening the auxiliary valve (62, 62'). The pressure in the servo space (50) drops and the shut-off valve (22, 24) is opened by raising the closing part (44) of the valve sheet (40). If the permanent magnets (76) are pivoted out of the effective region again onto the closing elements (64), the latter close the auxiliary valves (62, 62'), which has the consequence that the pressure in the servo space rises again because of the passage (52). The closing part (44) comes to rest on the corresponding valve seat again. The shut-off valve (22, 24) is thus closed. …<IMAGE>… </p> |
