Supplier replaces pump seals at coal mine

Mechanical seals, pumps and complementary pumps products supplier Mechanical Rotating Solutions (MRS) replaced expeller seals on centrifugal pumps at a coal mining company’s facility, in Mpumalanga, at the end of April and beginning of May; the pumps were registering poor mean time between failures. The pumps were originally sealed using conventional mechanical packing that, along with poor adherence to the packing schedule, caused excessive slurry leakage and, consequently, damage to the pump bearings, owing to water ingress, MRS CEO Franscois Steenkamp explains.