Resume: PT series pumps are designed for economical,trouble-free operation,the superior solids habding capabilities of the pump make it ideally suited for a variety of applications including solids-laden liquids and slurries. The impeller,seal,wears plate and flap calve can all be accessed through the cover plate openung for inspection or service. Atmospheric barrier along with a lip seal provide additional protection of bearings,also allows external monlitoring. Cartridge mechanical seal is specifically designed for abrasive and or trash handling service. The entire rotating assembly can be removed without disturbing pump volute or piping.