1. Single-stage end-suction centrifugal pumps with volute lu. 2. Balances the axial loads in the back of a closed type impeller single inlet rings were fitted, and dynamically balanced. 3. B carrier chassis with oil-lubricated pumps are designed solid two bearing seats. 4. Pump motor connection is made using a standard flexible coupling on a common chassis. 5. Thin and clean non-flammable corrosive liquids that does not contain large solid particles and fibers, prints.