The impeller cover for ESPA Silen 30/50/75 and Silen S 60/75 pumps is a precisely shaped hydraulic element that surrounds the impeller and forms a diffuser space for efficient conversion of the water’s kinetic energy into pressure. A damaged cover reduces the pump’s hydraulic efficiency and increases operating noise.
The original ESPA part is made of material resistant to pool chemistry and UV radiation. Precise compatibility with the Silen 30, 50, 75 and Silen S 60/75 models ensures correct fitting and restoration of the pump’s full performance. Replacing the cover is a standard service task during a pump overhaul.
