Selection of valve size
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During the installation of the equipment and pipelines, it was found that the sizes of the pump’s inlet and outlet did not match those of the pipelines. When our company’s installers communicated with the construction team, it was stated that the sizes of the valves should be determined based on the sizes of the pump’s inlet and outlet. Despite repeating this several times, nothing changed, which has led to confusion in the procurement of materials. How to make a choice based on the size of the valve~
A reducer is sometimes needed at the pump outlet
I’ve seen some actual piping systems: the valves have the same diameter as the pipes, and they are connected to the pump via elbows.
At the very least, the pump inlet is not an appropriate location; it is necessary to minimize the length of the piping behind the necking to reduce resistance and avoid cavitation.
No, they are all installed on-site according to the flowchart~
We purchase the materials based on reducer fittings, with valves selected according to the size of the pipes; now we don’t ask anymore and just let them decide how to use them
Then I can only say that those who created the flowchart and those who supplied the pumps didn’t coordinate well. The interface size of the pump is assumed to be the same as that of the pipeline in the flow diagram, but this is not the case when it arrives.
The pump outlet is first enlarged using an eccentric pipe before the valve is installed.
This is a management issue, not a technical one