Unique shaft seal design, the built-in type adopts Teflon Bellow Seal self-cooling design. 

Self-priming design, the self-priming force is particularly strong, the self-priming type can reach 20ft, and there is a check valve design to prevent the liquid in the pump from flowing back. 

Acid and alkali resistance, strong corrosion resistance, materials are CFRPP, FRPP, PVDF (Teflon). 

To prevent the inhalation of other substance a foot valve should be installed at the inlet. To prevent the instantaneous backflow phenomenon during shutdown, which will cause damage to the pump body and the pump idling a check valve should be installed at the outlet.