Vacuum specialist Leybold has added the VD HD/02 version to its VARODRY series for demanding industrial applications.
The new model is designed for rough coating, drying and regeneration applications where extra strength is required and the exhaust gases are usually discharged via piping.
The VD HD/O2 is available in pumping speed sizes 65, 100, 160 and 200 m³/h and it has been specially equipped with a stainless steel exhaust and a built-in purge module.
VARODRY pumps are completely oil-free so there is no oil migration from the gear chamber into the vacuum chamber or into products or processes. This prevents potential reactions of the lubricant with process media as well as back diffusion towards the process chamber.
Based on this completely oil-free operation and the additional precautions taken to ensure hydrocarbon-free surfaces, the HD/O2 version can tolerate 100% oxygen. The elimination of complex (PFPE) oil changes means the new VARODRY HD/O2 version is well suited to industrial vacuum processes when using 100% oxygen or in other demanding applications.