名称：Sealless pump for drinking water circulation
介绍（Introduce）：
Maintenance-free, high-efficiency, adjustable-speed drinking water circulation pump in sealless version with threaded or flanged connections, electric motor and stepless differential pressure control for drinking water and hot water supply systems.
主要应用（Main applications）：
Drinking water circulation system in accordance with DVGW-W551
技术数据（Technical Data）：
Component Function | Delivery |
Inlet connection method | External thread joint Flange |
Drive scheme | With E drive |
Highest generation series flow | 24 m3/h |
min.Generation Series Flow | 0.1 m3/h |
The highest generation series lift | 12 m |
min. series lift | 1 m |
Power frequency | 50 Hz,60 Hz |
Line Voltage | 230 V |
Housing Material | GX5CRNI19-10 |
Pressure class output | PN 6，PN10 |
Maximum allowable discharge side operating pressure of the series | 10 bar |
Inhalation characteristics | Non-self-priming |
Maximum permissible medium temperature | 70 °C |
Minimum permissible medium temperature | 2 °C |
优势（Advantages）：
1. High-efficiency technology combined with speed control and efficient operation through dynamic control, saving operating costs to the greatest extent possible
2. Save investment costs and commissioning costs through the "one-stop" concept
3. Easy operation via operating keys, combined with integrated display and icons for displaying operating status
