Finder - Model PEP and D-PEP -Low Flow / High Head Pumps

Hydraulic working principles are the same described in the literature for "Partial Emission" or "Barske type" pumps i.e. open impeller with full radial vanes and 90° exit angle, concentric volute, the energy being transferred to the liquid in a forced vortex regime and converted into pressure in a diverging diffuser.

The peculiarity of PEP range is that the required output velocity is obtained by increased impeller diameter instead of increased rotating speed. Low rotating speed grants low NPSHr values all over the operating range: in all PEP pumps, NPSHr remains less than 1m @ 3000 rpm without the use of inducers which are often restricting the pump operating region.

The result is a robust, maintenance friendly pump for extreme service conditions: from less than 1 to 25 m3/h, up to 300 m head, with casing pressures 50 Bar and over, at temperatures up to 400 °C and with any type of hazardous and flammable fluids.

Open impeller design and generous clearances allow moderate solid contents in the process fluid and surface coating if required.