What is the difference between the actual density of a liquid and its standard density, and which density should be used as a reference for pump selection?
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What is the difference between the actual density of a liquid and its standard density, and how are they converted into one another? Which density should be used as a reference for pump selection? Seek guidance from Haiyoumen!
There is always a design point in any design; in practice, things cannot be that strict – changes in temperature, composition, and concentration can all affect density.
The actual density of the liquid must definitely be taken into account. Generally, pumps are calibrated based on water; if the density of the liquid is lower than that of water, there’s no problem. But if it’s higher, it’s necessary to inform the manufacturer, as a larger motor will be required. How to measure the actual density of a liquid: The simplest way is to use a volumetric flask to contain a fixed amount of the liquid and then weigh it; thus, the density can be calculated
The pump’s flow rate and head must be calculated based on the actual density. This actual density corresponds to the operating temperature.