AY single two centrifugal pumps (centrifugal pump | centrifugal pump) series, is a Y-type oil pump in the old series, based on the transformation and re-design. It is to meet the needs of modernization, as soon as possible to adapt to the energy-centric equipment replacement and development of new products have the following characteristics: 
 1, bearing the body parts of the body bearing the original 35,50,60 45,55,70 bearing body were used to improve reliability. 
 2, over-current parts of the hydraulic energy efficient pump with a hydraulic model, the average than the old Y-type oil pump efficiency 5-8%. 
 3, in order to maintain continuity, AY-type oil pump structure type, installation size, range of performance parameters remain the same with the Y-type oil pump, the old device to facilitate the renovation. 
 4, a high degree of common parts, standard parts through several series of products for the share. 
 5, selection of refined, subject to Ⅱ, Ⅲ class-based materials, bearings and other parts of the body to increase as steel, cast iron two, for the cold regions, cold regions exposed, open-air use, providing favorable conditions for marine. 
 6, bearing an air cooling, fan cooling, water-cooled three, according to the different temperature pump selection. Fan cooling is particularly appropriate and in the water or poor water quality areas.