Popular applications for rotary lobe pumps, especially in all-metal design, are the food, pharmaceutical, cosmetic and chemical / biochemical industries. In this industries the pumps are subject to high hygiene and cleanability requirements inside the pump and the housing, as this sensitive environment allows no contamination and the media must be specially protected to prevent the growth of bacteria and pathogens. These requirements are defined by a range of hygiene guidelines, from the EHEDG to the 3-A Sanitary Standard to the requirements of the US Food and Drug Administration (FDA). The technology of NETZSCH rotary lobe pumps is characterized by a separated pump and gear room so that there is no danger for the medium to be contaminated by lubricant, with its oil-free belt drive the T.Sano avoids this risk completely. The special smooth surface is designed that hardly any dirt or dust can be deposited on the pumps. But not only hygiene requirements are met by rotary lobe pumps. The pumps provide consistent and low-pulsation conveyance, which is particularly beneficial for shear-sensitive media, such as yoghurt as it preservers the product consistency.