the alfa positive displacement rotary lobe pump with sanitary design suitable for use in the dairy, food-processing, beverage, cosmetics, pharmaceutical and fine chemicals industries. this sanitary lobe pump is perfect for managing all kinds of fluid, of either low or high viscosity, as well as for filtering and bottling applications. it is bare shaft rotary lobe pump. it is made of a cast stainless steel pump casing and cover, and tri-lobe or twin-lobe rotors with sanitary attachment.