1. It is suitable for well or reservoir water supply;

2. It is suitable for civil, industrial, mining and enterprise; 

3. It is used in school and irrigation garden; 

4. The maximum liquid temperature is + 35 ℃;

5. The pH value is between 6.5 and 8.5, and the maximum sediment concentration is 0.25%; 

6. The maximum immersion depth is 30 m; 

7. The minimum well diameter is 100 mm.