EAFJ Heavy duty submersible ejector pump


  1. High oxygen transfer rate,BOD easy to remove from wastewater treatment.
  2. Mixing and stirring applications for uniform MLSS due to fine bubbles convention.
  3. Dry motor with overload protector;Cable with an epoxy resin sealed water-proof cable hood; Use deep groove C3 bearing to extend life time.
  4. Adopting cast iron FC200 material on motor housing,pump casing and impeller.The pump is coated with Epoxy.It's better corrosive-resistant and rust-resistant than common paint.
  5. Adopting superior abrasion-resistant dual mechanical seals(SIC,silicon carbide material)to ensure best seal effect and reduce abrasion from sewage.It's also suitable for long term running.

Put EFJ pump under wasterwater
increase Oxygen in waste water
EVERGUSH EAFJ-series Havy duty Sub. Ejector Pump
Ejector pump is installed under water to increase oxygen in aqua farm.


  1. Oxygen aeration of wastewater for wastewater treatment.
  2. Oxygenated for aquaculture, such as fishing farming or shrimp farming or hydroponics applications.


Operating Conditions:

  1. Ambient Temperature: Max.40℃
  2. Liquid Temperature: 0~40℃
  3. Continuous duty.
  4. It's forbidden to operate submersible ejector pump(Sub.aerator) continuously under the lowest running water level.


  1. Output: 2HP~7.5HP
  2. Motor protection: IP68
  3. Insulation: F
  4. Pole: 2P
  5. Voltage: 1phase110~240V(50Hz or 60Hz); 3phase220~440V(50 or 60HZ)
  6. Discharge: only 3”
  7. Air pipe: 1.5" ; 2"
  8. Rated Air: 22~100 M³/Hr
  9. Rated OTR:0.9~4.7 Kg-O2/Hr
  10. 10.Water Depth:2.5~4M
Any questions about our products?

The EVERGUSH branch offices cover all round Taiwan. If you have any questions about our products or need related technical data, please feel free to contact with EVERGUSH local branch office. Please link our branch office as following.

Equipment failure? Try our online troubleshooting.
Right here we will provide solutions for problems or failures that you could've encountered with pumps. The content of these solutions have been gathered from experienced and professional technicians in our company. Before you contact our technicians for answers, we suggest you read through below basic troubleshooting and instruction manual. It should help you to understand more about our products, and also find out the solutions more quickly.