What is the purpose of the holes on the flanges at the front and back of a pipeline pump?
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I would like to ask what the holes on the front and rear flanges of pipeline pumps are for? See the figure.
In my personal opinion, it can be used to exhaust air from the pump body
It can’t be the exhaust vent; there’s a dedicated one for that.
For exhaust applications, the mechanical seal of the vertical pump is too high
Reserved flushing holes and pressure gauge connections that may be used during testing. But it’s not very useful; it’s also possible that the manufacturer has already produced all the standard drawings.
PLAN14 is for flushing, it’s just that the sealing isn’t designed that way: lol
The pump we use with clean water is only for venting and preventing freezing in winter: lol, it’s quite convenient for working with