Minimum return line design
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Is the minimum return line designed only for centrifugal pumps? Do you need other types of pumps? The pumps in our facility are designed with return pipelines; they remain operational once started up, and are primarily used for automatically regulating flow.
As long as pressure retention is required, it’s necessary; wait for an expert to answer
The key factor is whether there are any requirements regarding the process. If the process does not require a stable pump flow rate and the fluctuations in process flow are large, with those fluctuations exceeding the pump’s minimum operating flow rate, then it is not necessary to install a bypass line; flow regulation can be achieved by using control valves or frequency converters
There are many advantages to installing a return pipeline; one of them is flow regulation； The second is single-unit testing.
It depends on the process, equipment, and medium. For example, when using high-speed pumps to handle certain media, such equipment is necessary. From a process perspective, it is also necessary to set it up in some cases. Ordinary mechanical pumps do not require it
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