WAAGERECHTE SCHLAMM-KREISELPUMPE

摘要

The pump comprises an impeller 11 provided with a polyurethane layer 22 to resist corrosion due to the abrasive mud which is pumped. The layer may be moulded or cast on a metal core 14, or alternatively the impeller may be cast entirely from polyurethane. The pump housing has a polyurethane or rubber liner 13 and the rear face of the impeller is provided with blades which draw in air through a packing gland 19 to prevent the pumped mud reaching the shaft 15.