Pumping Unit Tests
The importance and necessity of pumping unit tests are set forth in a paper by the well-known hydraulic engineer, Henry W. Taylor, in another column. At the present rate of wages and materials, the high price of coal and the added cost of electric power, it is of the greatest importance that the capacity of the various pumping units of a plant should be known with the utmost accuracy. This can only be determined by tests and it is of this important matter that Mr. Taylor treats. He divides the test into three classes: First, a witnessed test at the manufactory; second, operating test, after the pump has been set up in its place in the pumping station, and third, an efficiency test, the latter to be repeated periodically to determine whether the pumping unit is living up to its specifications, or whether there are worn or broken parts that require replacement, as for instance, a worn impeller. This paper by Mr. Taylor shows the methods of tests and how the cost of pumping is increased by the lowering of efficiency through worn parts and other similar causes. The article is well worth careful study.