Manufacturers continually strive to provide custom-made pumps, at a low cost and high efficiency. This article discusses how 3D digital prototypes and evaporated pattern casting play an effective role in rapid custom design and production, with maximum energy-savings. The working efficiency of a pump changes with its operation point, which is the intersection of a flow-head curve for the pump and the flow-pressure drop curve for the pipeline. Traditionally, the pump specifications are available in very limited quantities, while the character of pipeline is endless.
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