Able to handle abrasive, corrosive, viscous, or crystallizing media and slurries with high solid content, LPP-T32 and LPP-T50 feature rolling design that eliminates friction, maximizes hose life, and lowers energy consumption. Roller is mounted on crankshaft, creating eccentric rotation during 360^o operating cycle. Pumps are also equipped with in-line pipe connections, optional hose leak detection unit, and adjustment mechanism that senses hose wear when compression is readjusted.