名称：Horizontal self-priming volute pump, back-draw design
介绍（Introduce）：
Horizontal, self-priming volute casing pump, single-stage, with open multi-blade impeller, from size 40-40-140 with bearing bracket, back pull-out design, optionally available with ATEX.
主要应用（Main applications）：
1. Sprinkler equipment
2. Industrial water equipment
3. Drainage
4. Drainage equipment
5. Fire extinguishing equipment
6. Lowering groundwater
7. Domestic water supply
8. Air conditioning equipment
9. Cooling circuit
10. Swimming pool equipment
11. Water supply system
技术数据（Technical Data）：
Component Function | Delivery |
Inlet connection method | Flange |
Drive scheme | With E drive, turbine |
Highest generation series flow | 180 m3/h |
min.Generation Series Flow | 4 m3/h |
The highest generation series lift | 105 m |
min. series lift | 5 m |
Power frequency | 50 Hz,60 Hz |
Line Voltage | 230 V, |
Housing Material | EN-GJL-250/A48 CL 35B, |
Pressure class output | PN 16 |
Maximum allowable discharge side operating pressure of the series | 16 bar |
Inhalation characteristics | Self-contained suction |
Maximum permissible medium temperature | 90 °C |
Minimum permissible medium temperature | -30 °C |
优势（Advantages）：
1. Maintenance-free mechanical seal for reliable operation
2. Back-pump design for easy disassembly, the pump housing can remain in the pipeline
3. Excellent suction characteristics, maximum self-priming suction distance up to 9 m, can operate even when inlet conditions are relatively poor (i.e. low or negative pre-pressure), and can transport media with entrained gas
4. Optimized hydraulic system, low energy consumption, high efficiency
