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Vacuum material extraction issue

2009-03-13View Original

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I have a plexiglass system that requires vacuum pumping, and I’m wondering what level of vacuum it can withstand. Also, what is the typical vacuum level required for vacuum pumping? I hope for your advice!
Reply #22009-03-13
Generally, glass instruments used for vacuum pumping can handle a vacuum level of 0.095 MPa without issue; the vacuum level required for vacuum extraction should be related to the viscosity of the material.
Reply #32009-03-13
The specific gravity of the material and the height it is drawn up determine the level of vacuum. Material viscosity mainly affects the material extraction speed.
Reply #42009-03-13
It depends on how thick the glass is. Generally speaking, for the 2-3mm glass I’ve used in the past, there’s no problem with a absolute pressure of 1000 Pa

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