SP and SPR pumps are vertical, centrifugal slurry pumps submerged in sump to work. They are designed for delivering abrasive, large particle and high density slurries. These pumps have no need of any shaft seal and sealing water. They can also be operated normally for insufficient suction duties.

The pump casing of SP pumps are made of wear-resistant metal and the impellers are made of wear-resistant metal, rubber or polyurethene.

All parts submerged in sump for SPR pumps have rubber liners to be suitable for delivering corrosive slurries.