Liquid Ring Vacuum Pumps - Classic Vacuum Technology and yet Still State of the Art

Vacuum technology has never stopped developing – not only in the recent past, but for decades it has continued to progress. Today, dry screw vacuum pumps are used in chemical processing technology...
The principle behind the liquid ring vacuum pump was developed as early as 1890 in the form of the "water ring pump". Due to their simple and robust construction, liquid ring vacuum pumps (fig. 1) are suitable for vacuum generation in applications in which damp gases or vapours are evacuated...
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