Simply Submersible seepex semi-submersible pumps of product group E are installed vertically. They pump liquids of different viscosities, which may be abrasive or even aggressive. Due to their high degree of efficiency, the low space requirements and the maintenance-friendly design, seepex semi-submersible pumps feature low operating cost and are thus a cost-efficient alternative to other pump systems. Pumps of product group E are self-priming.