MTH 140-240-180-280
One of the most notable improvements in regenerative turbine pump technology incorporated in 140 • 240 • 180 • 280 Series pumps involves the ability to determine the optimum
impeller width and blade length. These factors have a significant effect on the required horsepower versus pressure curve for regenerative turbine pumps.
By optimizing these for each 140 • 240 • 180 • 280 Series pump, peak efficiency is improved and “off peak” horsepower requirements are reduced as well.
Impeller Blades
After the most favorable impeller profile has been determined for a particular water passageway cross section, MTH calculates the number of blades needed to maximize the performance of that pump. Current blade design in 140 • 240 • 180 •280 Series pumps increases both efficiency and design pressure without the manufacturing difficulties associated with producing contoured blade impellers.
State-of-the-art computer controlled machines simplify manufacturing of the various MTH impellers utilized in the 140 • 240 • 180 • 280 Series. The result is a high performance pump providing efficiency characteristics exceeding those of more expensive units.
NPSH Requirements
140 • 240 • 180 • 280 Series regenerative turbine pumps meet low net positive suction head (NPSH) requirements without efficiency loss.
This is achieved by keeping the inlet fluid velocity low and then gently accelerating to passageway velocities.