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?
Thread Content
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!
The standard density is generally based on clear water. When designing, manufacturing, and testing the performance of various water pumps, manufacturers use water as a standard for determining the performance parameters. Therefore, when the density of various liquids is greater than that of water, it is necessary to increase the power of the pump in order to meet the requirements; otherwise, the motor may be overloaded. It is first important to know the density of water, which is 1.0 kg/dm³. Liquids with a density lower than that of water, such as gasoline, fuel oil, hydraulic oil, kerosene, petroleum, diesel, and crude oil, all have a lower density than water, so there is no need to increase the power of the motors used in these oil pumps. On the other hand, liquids such as tar, sugar solutions, and syrups have a higher density than water, so it is necessary to increase the power of the motors to meet the requirements.