1971-02-01

A Practical Approach to Centrifugal Pump Design 710533

This paper outlines a unique approach to the design of a common centrifugal pump. It is based on establishing a three-point performance curve-namely, the shutoff head (zero capacity), the design point, and the maximum capacity that represents the desired performance-and then designing the pump to meet these conditions. In order to eliminate the need of various coefficients, Stepanoff's (2)* dimensionless chart is used to select and establish a head-capacity value at the best efficiency point. Modified vector diagrams together with a sample problem showing the necessary equations, charts, and calculations illustrate the simplicity of design. The problem is based on a radial design impeller at 245 gpm at 75 ft of head and 3450 rpm. Other pump capacities may be similarly designed by varying the design parameters.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X