DRX, DRY and DGX models constructed in ASTM A351 CF8M (AISI 316) stainless steel with multi-channel impeller for strained liquids or vortex impeller for soiled wastewater. DRB and DGB pumps constructed in aluminum-bronze. Oil-bath motor and dual mechanical seal cooled by motor oil guarantee continuous service. Recommended for corrosive and aggressive liquids, chemical and pharmaceutical sector, seawater, fish processing and livestock farming.