The ISG series single-stage single suction vertical centrifugal pump is a second-generation high-efficiency and energy-saving product designed by our company based on the performance parameters specified in international ISO2858 and national standard JB/T6878.2-93, combined with our years of production experience. It is an ideal product to replace conventional pumps such as SG type pipeline centrifugal pumps, IS type centrifugal pumps, and D-type multi-stage centrifugal pumps. The series has a flow range of 1.5-1600m3/h, a head range of 5-156m, and a diameter of 15-500mm. It is available in various specifications such as basic type, diversion type, and cutting type. Design and manufacture IRG type hot water pumps, IHG type pipeline chemical pumps, YG vertical pipeline oil pumps with the same performance parameters based on the medium and temperature of the usage scenario, and the material and structural changes of the overcurrent part. This series of products can be widely used and can completely replace conventional centrifugal pumps in all occasions.