The impeller for ESPA Silen 100M and Silen S 100M pumps is a shared rotating hydraulic component designed for the performance class 100 (approximately 1 HP) of both design ranges.
The precisely shaped impeller blades are dimensioned for optimal hydraulic efficiency at a flow rate matching the Silen/Silen S 100M model.
Wear, cavitation damage or scaling of the blades causes a reduction in flow and an increase in electricity consumption.
Replacement after dismantling the front pump section restores performance without the need to replace the entire unit.
The original ESPA design guarantees precise dimensions for a trouble-free fit on the shaft and into the pump’s hydraulic channel.
