Roto Pumps Ltd. Offers Food and Hygiene Progressive Cavity Pumps. Roto Pumps Ltd. Is an ISO 9001-2000 certified company. The Food and Hygiene Progressive Cavity Pumps have all body parts that come in contact with the liquid, is made of stainless steel and stator is made of non contaminating rubber. The surface of Food and Hygiene Progressive Cavity Pumps is smooth, eliminating product retaining pockets. The pumps are supplied with food grade Gland packing or Mechanical seals. The application areas of Food and Hygiene Progressive Cavity Pumps are pharmaceuticals, food, and cosmetic industries.