How to determine the inlet and outlet of this Roots blower?
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Dear teachers, how can we determine the inlet and outlet of this Roots blower? The pressure gauge used for this Roots blower has a range of -100 to 0 KPa
The pressure gauge and check valve are both installed at the outlet, so it is determined to be low inlet and high outlet.
Teacher, can the inlet and outlet of a Roots blower be changed by reversing the direction of rotation of the motor?
The one above is the inlet pipeline, while what is marked in your picture is the outlet pipeline.
Arrows indicate the areas that you have erased
According to the nameplate, it is a positive-pressure blower; the pressure gauge and check valve of such a blower are installed at the outlet, so it can be concluded that air flows in from the low side and out from the high side.
The pipeline indicated by the arrow is the inlet pipeline
Is the pressure gauge -100~0 kPa? A vacuum gauge was chosen
Material enters from above and exits from below; judging from the material label, it should be a vacuum system rather than an air-blowing system
Generally, the inlet and outlet of the pump body are positioned with the inlet at a lower level and the outlet at a higher level.