End Suction Screw Centrifugal Pumps
All of our Dry Pit/bearing frame pumps incorporate the screw centrifugal impeller, invented by Hidrostal. This hydraulic design offers considerable benefits over conventional centrifugal pumps.
- Solids handling
- Viscous pumping
- Delicate handling
- Low shear pumping
- High efficiency operation
The impeller has a single spiral vane having large open passages and an extended turn from the axial to the radial direction.
These features give a combination of characteristics not found in any other type of pump, namely:
- Extremely steep and stable curve
- High efficiencies
- Non-overloading power curve
- Low NPSH
- Non-clog pumping
The term “Non-Clog” has almost become a punchline in the pumping industry. Traditional wastewater pumps are actually classified as “Non-Clog”, but ask any operator or pump mechanic if their “Non-Clog” pumps clog! The Hidrostal design takes solids handling operation to the next level, where clogging & blockages are a thing of the past. The Hidrostal is not a traditional non-clog pump, but actually a hybrid that utilizes the best features of a positive displacement type screw pump – crossed with a single vane centrifugal pump. This combination provides an unmatched performance of effectiveness & efficiency.