The pipe diameter is too large, so the liquid does not fill it completely; as a result, there is a loud noise as the fluid flows through
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One of our circulating water pipes – the section of it that is installed vertically – is producing a lot of noise for some unknown reason. It sounds to me like the noise is caused by the pipe having an excessive diameter, with the circulating water not filling the vertical section of the pipe Note that the direction of the circulating water is from bottom to top! I don’t know if such a guess is correct! Or are there any other reasons? And then how to solve it! Can the specific relationship between flow rate and pipe diameter be calculated? How to calculate it?
This sound should not appear on the vertical pipe
From the sound I heard on site, it seems to be a vertical section
Scaling shouldn’t be an issue; it’s all new! Testing and trial operation phase. I also feel it’s the air
Is there a throttling sound due to too low flow?
Is there a device similar to a liquid seal at the back that traps air inside? Try increasing the height to allow air to escape