ISW horizontal single-stage single-suction centrifugal pump is based on international standard ISO2858 being adopted, and using the latest hydraulic model, at the same time with reference to relevant international standard designed as SG type pipeline pump replacement products. ISW horizontal single-stage single-suction centrifugal pump adopted by the technical standards, performance parameters and test methods are effective adoption IS type of centrifugal pump on the ISO international standards, with IS essentially the same type of centrifugal pump performance parameters, the performance indicators all meet the design requirements.