| 摘要 |
<p>The circulating pump (1) comprises pressure connectors (4,5,30) and a water distributor (6) which comprises a rotary valve (7) for locking and releasing the pressure connector and a drive unit (8) for rotary valve. An additional discharge nozzle (9) cooperates with an additional valve unit with the pressure connector. The valve unit comprises a valve (11) which is actuated with the drive unit for water-tight closing.</p> |
