Vacuum specialist Leybold extends the 100% dry screw pump Varodry platform for demanding industrial applications with the heavy duty and oxygen (VD HD/O2) version. This compact all-rounder is easy to install and, due to its compact design, easy to integrate into systems.
The VD HD/O2 versions are particularly well suited for rough coating, drying and regeneration applications where extra robustness is required and exhaust gases are usually discharged via piping. The VD HD/O2, which is available in pumping speed sizes 65, 100, 160 and 200 m3/h, is specially equipped with a stainless steel exhaust and a built-in purge module.
In comparison to competitive screw vacuum pumps, Varodry is completely oil-free. There is no oil migration feasible from the gear chamber into the vacuum chamber or into products or processes. This prevents potential reactions between the lubricant and process media as well as back diffusion towards the process chamber.
Based on its oil-free operation and additional precautions taken to ensure hydrocarbon-free surfaces, the HD/O2 version can tolerate 100% oxygen. This suitability has been proven by intensive and sustained testing by a notified body, according to the company.
