Both of these metrics, though, have two things in common: Their final answers are averages, and both of their results can be impacted by variable velocities. This is why the first thing that must be established for a new system is the required flow rate.”įlow rate can be calculated a number of different ways, such as mass flow rate (a measure of how much mass passes through a pump system over a particular period) or volumetric flow rate (a measure of how much volume is processed). This is constant because of the law of conservation of mass, what goes in must come out. But one thing that does not change is the flow rate. explains, “Velocity can change throughout the system because of pipe reductions, partially closed valves or other. However, that’s where the simplicity ends. It’s essentially how many feet or meters per second that a liquid moves throughout a pump system. Like the overall function of a pump, understanding fluid velocity appears easy at first glance. In this post, we will explain why liquid velocity is so important for centrifugal pump systems, the different kinds of flow, how pipe diameter can impact your system, and how one calculates pump discharge velocity. One of the areas that often confuses end users is liquid velocity. From allowable pipe stress and the Reynolds number to energy gradients and specific speed, pumps can get very complicated very quickly. According to the venerable dictionary, it’s “a device that raises, transfers, delivers, or compresses fluids.” And while that definition is true, it fails to capture the complexity of the devices that have been used since at least 200 B.C. If you look up the definition for the word “pump” in Merriam-Webster, you could be forgiven for thinking that pumps are simple machines. Chemical Ratings For Various Pumps And Materials.March Chemical Pumps for Aluminum Sulfate.Chemical Transfer Applications for Our Pumps.In Need of A Mag Drive Pump For Etching Equipment?.Do You Need an Electrostatic Painting Pump?.Need a Mag Drive Pump for Chiller Applications?.Looking for a Mag Drive Pump for a Reverse Osmosis System.
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