Pumps eSPU6 Circulation pump Circulation pumps of the eSPU6 series are canned motor pumps, designed as screw pumps with radial stage. The ideal field of application are closed high pressure circuits in process hydraulic systems. For this purpose the eSPU6 is a real and inexpensive alternative to glandless centrifugal pumps. The eSPU6 pumps are not self-priming, which means that the pump circuit must be well vented. Contact Us Enquire Now