by Jim Becker, Pump Solutions Group
May 23, 2012

Certain vortex centrifugal pumps can help maximize reliability during wastewater applications. This includes the transfer of sludge and slurries with large particle solids, materials with entrained air and stringy or fibrous materials. Designed around the seal, where 90 percent of pump failures occur, these pumps help improve mean time between failures, resulting in reduced maintenance costs. In addition, the have been designed to offer the widest window of operation off BEP than any other conventional centrifugal pump. 

Some vortex pumps feature heavy-duty, solid, low deflection shafts that prevent common vibration damage and create greater stability at the seal area to improve seal life. They also feature heavy-duty bearings that offer a greater load capacity and extend bearing life, while the specialized seals provide non-wearing lifetime protection for radial and thrust bearings. This all results in better pump reliability even in the most extreme environments.

These pumps are available in different frame configurations and can reach capacities of 340 cubic meters per hour (1,500 gallons per minute). Available with discharge passages from 2 to 4 inches, the larger pumps can pass solids up to a nominal 4 inches. These vortex pumps are available in standard, ductile iron or CD4MCu material, with an optional spacer flange that allows for the removal of the separate suction cover for cleanout without disturbing piping.



Every community produces wastewater, and the wastewater must be treated. Selecting a centrifugal vortex pump for sludge transfer applications may go a long way in helping treat wastewater in a cost-effective way.


* No endorsement of Blackmer® System One® Vortex Pumps by Scott Maring is to be inferred.