The VS4 series vertical centrifugal pump is designed according to the American Petroleum Institute API610 11th specification and comes in three structural forms. HY type is a vertical single-stage or multi-stage, first stage single suction centrifugal pump, suitable for conveying various clean or polluted, low-temperature or high-temperature, chemically neutral or corrosive media, especially suitable for conveying various media such as sewage and dirty oil. The HL type is a vertical pump that is a suspended long shaft submerged sulfur pump, suitable for transporting sulfur media. The HRY vertical pump is a suspended long axis submerged high-temperature pump suitable for transporting high-temperature media.