... diameter (mm)A-first reconstruction, Y-centrifugal oil pump, S-first impeller double-suction,,material code of ... by A, B.......Structure:AY-type oil pump has six models: single-stage single-suction cantilever ... (fig. 1fig. 6)Its shell is radially split type. It is suitable to the conveying of high ... and outlet flanges are installed on its pump body, vertical and upward. Shaft seal (stuffing box) ...