submersible deep well. 4SKM submersible pump have advantages of small volumn, light ,weight ,lower noise,long-working time etc. ... .5 m3/h) Head up to 525 m Limits of use Liquid temperature up to +30° C Maximum sand content 150 G ... , civil and industrial sectors, including for water supplies as part of a pressure set, irrigation, washdown systems, pressure boosting and fire ...