Seeking help with the vacuum level issue of a Roots pump
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The rotors of the 8-character Roots pump are not colliding; is it normal for there to be a radial clearance between them? Can this clearance affect the vacuum level? How to measure the vacuum level of a single unit
It’s not necessarily normal if the 8-shaped rotors of a Roots vacuum pump do not touch each other; there are specified requirements for gaps. Our axial gap is 0.25, while the radial gap is 0.45 on the larger side and 0.35 on the smaller side. If the gaps are too large, the vacuum level will definitely be low
Following up on what was said above: The Roots vacuum pump cannot operate on its own. A pre-pump must be installed.
I know that a Roots vacuum pump cannot operate on its own, but I want to check what the vacuum level of this individual pump is. The manufacturer will surely test this.
Hello, I’m not familiar with the terms \"large face\" and \"small face\" you mentioned. The axial clearance of our pump cannot be adjusted; could you explain what it means by \"large face: 0.45\" and \"small face: 0.35\"? And how to engage radially. It would be best to have a diagram. Or add me on Q77903586, thank you
When the driving shaft is convex, it corresponds to a larger surface; when it is concave, it corresponds to a smaller surface