Does the exhaust port on the pump casing discharge to the atmosphere directly, or does it depend on the medium?
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The exhaust port on the pump casing serves to release air before startup; does it discharge air directly to the atmosphere, or is it necessary to do so in a sealed manner depending on the medium?
It must be determined based on the properties of the medium
Most of it is probably released directly into the atmosphere. Of course, if it’s a substance that can cause direct harm to humans, it must be discharged in a sealed manner
There are also special cases in which gases are collected together
What pump? The author is probably referring to a conventional centrifugal pump. It is necessary to fill the pump with liquid before starting it, and the vent port allows air in the pump chamber to be expelled, thereby preventing air locking.
The discharge method should be determined based on the hazard characteristics of the medium.
Flammable, explosive, toxic, and harmful substances must be discharged in a sealed manner! Be cautious!
With such strong environmental pressure these days, it’s best to concentrate emissions and collect them together
Generally, the venting of pumps is connected to the vent line or flare line; I’ve never seen circulating water being vented directly into the atmosphere! ! !
It depends on the medium. . . . . . . . . . . . . . .