Comparison between claw vacuum pumps and screw vacuum pumps
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Experts, I would like to ask about the differences in gas compression ratio between claw-type vacuum pumps and screw vacuum pumps, as well as the applications for each type. Which type of explosion-proof vacuum pump should be used for flammable and explosive waste gases?
With the same exhaust volume and the same level of vacuum, either option will work; flammability and explosiveness have no impact on the vacuum pump.
A screw vacuum pump is a better choice; the vacuum level achieved by both is similar, and their energy consumption is also about the same. Neither type generates wastewater as a problem. The only downside of claw pumps is that they have too many partition plates, which can lead to jamming, and they are difficult to repair (a screw vacuum pump has only one set of rotors, making it easier to repair and less prone to failure).
I think screw pumps work quite well; if recycling isn’t planned, water ring pumps are also a good option