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| ITT |
The high-pressure feed pump is an integral part of the reverse osmosis (RO) process. The new Model 3393 high-pressure ring section pump (photo) is capable of delivering 150 to 3,100 gal/min of feedwater (34 m3/h to 700 m3/h) depending on the size. The Model 3393 comes standard with i-Alert, an on-board monitoring device that constantly measures vibration and temperature, which provides a visual warning of potential operational issues. Benefits of the Model 3393 include: decreased power consumption and low total cost of ownership with high-efficiency hydraulic design; standard casing rings provide an easily replaceable wear surface to restore original efficiencies; impellers can be machined for impeller rings to extend the useful operating life of the pump; simplified maintenance and inspection because the involute balance drum is accessible and removable from the discharge side of the pump; and flexibility in plant layout resulting from multiple suction and discharge nozzle orientations. The Model 3393 RO pump will be available in sizes ranging from 2.5- to 6-in. discharge. — ITT Corp., White Plains, N.Y.