Food Industry is cross-sectoral, multi-category integrated industries, agriculture extension department, known as post-industrial agriculture. Its development , structure and level from a reflection of the level of economic development, and improve the national physical fitness and improve people's living standards have close ties. Diaphragm pumps in the food industry has been widely used in the food industry diaphragm pump is mainly used to transport liquid semi-solid chocolate, salt, vinegar, syrup, vegetable oil, soybean oil, honey. Animal blood, etc.