The 811 Series ANSI Centrifugal Pumps are designed for a variety of transfer applications found within storage terminal operations. The pumps feature open impellers with two times the wear area of a closed design, which optimizes the performance of the pump’s open impeller and allows renewable performance. This open-impeller design feature also minimizes concentrated wear by balancing the hydraulic axial thrust load and reducing the stuffing-box pressure. This not only facilitates corrosive, abrasive, solid and stringy-fiber handling, but also simplifies maintenance, extends pump life and reduces repair costs. The pumps feature:
- Self-tightening impellers that reduce leaks and failures
- The ability to externally adjust the clearance so that peak efficiency is ensured even after wear-area loss
- Back pump-out vanes that reduce pressure on the shaft seal and reduce thrust loads on the bearings
- Investment-cast impellers that are ultra-smooth to guarantee hydraulic and mechanical balance, and maximized seal and bearing life
Griswold Pump Company, www.griswoldpump.com
