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Applications ... Fairbanks Morse vertical close-coupled solids-handling pumps have over I 00 years of proven experience in pumping of solids, slurries, sludge, pulp, trash, sewage and grit. These pump are specifically designed to pass solids, trash and long stringy materials.
Vertical close-coupled solids-handling pumps can be found in sewage and raw water lift stations, many unattended, which require utmost reliability and freedom from clogging or other downtime maintenance. Plants demand pumps to provide sustained high performance, the best possible design to resist clogging, and minimum size driving motors and controls to reduce construction and operation costs. Sewage and wastewater treatment plants and industrial plants where solids handling service is required are other typical installations.
The successful application of vertical close-coupled solids-handling pumps requires the consideration of many elements. In addition to knowing the capacity and discharge head requirements, other factors which need to be evaluated include:
- Net Positive Suction Head Available (NPSHA) and submergence
- Maximum operating pressure
- Capacity operating range
- Horsepower required throughout the pump's operating range
- System head curve
- Sump requirements
Other considerations include:
- Parameters of the liquid being pumped
- Allowable solid size
- Elevation
- Driver requirements
- Material of construction
Features... Parameters of vertical close-coupled solids-handling pumps require the units to be available in configurations to meet user needs. Fairbanks Morse meets these demands by providing vertical close-coupled solids-handling pumps in discharge sizes from 2" to 20" in diameter. Bladeless impellers are available in many units with 2" through IO" discharge sizes and are capable of passing I 0- 25 percent more solids, long stringy material and trash than a conventional two-vane impeller.
Impellers are designed with large passageways, vanes with blunt well-rounded leading edges and a thick hydrofoil shape preventing long stringy material from wrapping around the leading edge. Impellers are matched with thick-wall equalizing-pressure, constant-velocity volutes. This design channels the flow away from the impeller vanes into the circular flow area of the impeller passageways and casing, to assure passage of large solids and long stringy materials, reduce turbulence and radial and bending shaft forces. Abrasive wear is minimized, bearing, mechanical seal (when used) and shaft life is lengthened, and most important, maintenance and downtime costs are greatly reduced, resulting in true savings. An added advantage is a smooth, quiet and trouble-free installation.
Material of construction include cast iron volutes, cast iron impellers and carbon steel pump shaft. Shafts can be sealed by either packing or mechanical seals.
Vertical solids-handling pumps are driven by standard vertical solid-shaft motors flexibly coupled to pump shaft. This configuration locates the driver directly above the pump and eliminates the requirement for intermediate shafting.
Our special services ... at Fairbanks Morse we will design, research, test and manufacture vertical close-coupled solids-handling pumps for special requirements. In many cases our standard pumps can be easily modified to meet these special requirements.
Our quality ... begins with total source control coupled with our investment in and commitment to highly specialized, computerized machinery. Fairbanks Morse manufactures vertical close-coupled solids-handling pumps that must meet the exacting standard of our design engineers.
Our commitment ... at Fairbanks Morse is based on our longevity, distinctive products, market leadership, and customer service and is the direct result of the quality and dedication of our personnel. Our vertical close-coupled solids-handling pumps are machined, built, and tested by our skilled shop personnel who average over 23 years of experience. Working as a team, our people continually explore new ways to better serve our customers. Product quality, dependability, and innovation are all part of the Fairbanks Morse commitment to excellence.
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