Seal vent opening -Ingersoll Rand Sierra SH300

[Meshry]

We have oil free package Ingersoll Rand Sierra SH300 and observed that 1st stage airend and 2nd stage airend seal ports are blowing heavily hot air. Is this a normal phenomenon? please see the attached photo.

I understand, this ports(openings) will leak only whenever there is a seal failure. however vendor advised, they shall have air blow even during normal running.

 

[LittleInch]

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