What are the detailed classifications of vertical long shaft semi submersible turbine pumps?

Vertical long shaft semi submersible turbine pumps can be classified in detail according to impeller structure, impeller type, pressurized water chamber structure, application scenarios, and materials, as follows:
Classified by impeller structure:
Open type vertical long shaft semi submersible turbine pump: impeller without cover plate, suitable for conveying media containing large particles or fibers.
Semi open vertical long shaft semi submersible turbine pump: The impeller only has a cover plate on one side, balancing efficiency and anti clogging ability.
Closed vertical long shaft semi submersible turbine pump: There are cover plates on both sides of the impeller, which has high efficiency and is suitable for conveying clean liquids.
Classified by impeller type:
Centrifugal vertical long shaft semi submersible turbine pump: It transports liquids through centrifugal force, with high flow rate and moderate head, and is the most widely used type.
Mixed flow vertical long shaft semi submersible turbine pump: The impeller outlet angle is between centrifugal and axial flow, combining the characteristics of both, suitable for medium flow and medium head scenarios.
Axial flow vertical long shaft semi submersible turbine pump: The liquid flows out of the impeller along the axial direction, with high flow rate and low head, suitable for high flow rate and low head requirements.
Classification of Pressing Water Chamber Structures:
Spiral shell type vertical long shaft semi submersible turbine pump: The pressure chamber is a spiral shell with a simple structure and high efficiency, suitable for single-stage pumps.
Guide vane vertical long shaft semi submersible turbine pump: converts liquid kinetic energy into pressure energy through guide vanes, commonly used in multi-stage pumps with higher head.
Classified by application scenario:
Fire vertical long shaft semi submersible turbine pump: specially designed for fire protection systems to meet high head, fast start and other requirements.
Wear resistant vertical long shaft semi submersible turbine pump: The impeller and flow passage components are made of wear-resistant materials, suitable for conveying abrasive media such as sand and coal powder.
Corrosion resistant vertical long shaft semi submersible turbine pump: made of corrosion-resistant materials such as stainless steel and fluoroplastics, suitable for transporting corrosive liquids in chemical and electroplating industries.
Classified by Material:
Metal vertical long shaft semi submersible turbine pump: The main body is made of metal materials such as cast iron and stainless steel, with high strength, suitable for high temperature and high pressure environments.
Plastic vertical long shaft semi submersible turbine pump: The overcurrent components are made of PP, PVDF and other plastics, which have strong corrosion resistance and are suitable for corrosive liquids such as acid and alkali.