Evergush Submersible Sewage Pump & Aerator Supplier in BD
Evergush submersible sewage pumps and aerators are fully submerged Taiwan-made units from Asia Automatic Pump Co. The sewage models (EF, EFK, EAF, EFD) lift wastewater that contains solids. The aerator models (EFJ, EAFJ) draw air into the water to add oxygen and mix the tank. Techno Bangla Creation Ltd. supplies them in Bangladesh.
What Are Evergush Submersible Sewage Pumps and Aerators?
A submersible sewage pump lives where the problem is: it sits below the liquid, so it never needs priming and the surrounding wastewater helps cool its sealed motor. A non-clog or cutter impeller lets solids pass instead of jamming. A submersible aerator uses the same sealed, underwater design for a different job. A jet draws air in and breaks it into fine bubbles. Evergush, from Kaohsiung, builds both families, and Techno Bangla Creation brings them to Bangladesh ETPs, STPs, sumps and fish farms.
It is not a clean-water or borewell pump, which clogs on solids. A submersible aerator uses the same submerged design for a different job: it draws air into the tank and mixes it with water, so oxygen reaches the biology without a separate blower. For pumps installed above the liquid, see our self-priming pump.
- Four series for sewage, hard-object drainage, slurry and aeration
- No priming needed because the pump sits below the liquid
- Suited to ETP, STP, sumps, basements and drainage
- Installation and after-sales support in Bangladesh
Submersible Sewage Pump Specifications
- Type
- Submersible sewage pump and submersible aerator
- Series
- EFK, EF, EFD, EFA
- Capacity
- 5 ~ 240 m³/hr (about 83 ~ 4,000 L/min)
- Motor
- 0.5 ~ 30 HP (about 0.37 ~ 22 kW)
- Application
- Wastewater, sewage, and drainage containing hard objects
- Brand
- Evergush
- Origin
- Taiwan
Head, solids passage, phase, voltage and duty rating depend on the model. Send us your duty point and our engineers will confirm the datasheet values of the exact model.
EFK, EF, EFD or EFA: Which Series Do You Need?
Pick the series by what is in your wastewater, not by motor size alone.
| Series | Typical design | Best for |
|---|---|---|
| EF | Non-clog vortex impeller | Raw sewage, sumps and tanks with soft solids and fibres |
| EFK | Impeller with tungsten cutters | Drainage with hard or stringy objects that would block a plain impeller |
| EFD | Vortex impeller with stainless agitator | Settled sludge and slurry sumps that need stirring before pumping |
| EFA | Submersible aerator | Aeration and mixing in ETP, STP and equalization tanks |
Design details follow Evergush series descriptions and can differ by model. Confirm impeller type, solids passage and air rating on the datasheet of the exact model.
How a Submersible Sewage Pump Works
- Wastewater Fills the WellEffluent or sewage collects in the sump, wet well or tank.
- Level Control Starts the PumpA float or level sensor starts the motor at a set high level.
- Sealed Motor Turns the ImpellerDouble mechanical seals keep liquid out of the motor, and the surrounding liquid cools it.
- Impeller Passes the SolidsA vortex or cutter impeller moves solids through without blocking.
- Pressure Lifts the FlowThe liquid leaves through the discharge pipe to the next treatment stage.
Submersible Aerator vs Blower and Diffusers
A submersible jet aerator draws in its own air. A blower system pushes air through pipes to diffusers.
| Feature | Submersible Aerator | Blower + Diffusers |
|---|---|---|
| Air source | Self-aspirating, no separate blower | Blower, air piping and diffuser grid |
| Oxygen per kWh | Reported roughly 0.9 to 1.4 kg O₂/kWh for jet aerators | Reported roughly 2 to 7 kg O₂/kWh for fine-bubble discs |
| Mixing | Strong jet mixing in the same unit | Mixing depends on layout, sometimes a separate mixer |
| Installation | Lower in, lift out, little piping | More pipework and tank civil work |
| Best fit | Small and medium tanks, lagoons, equalization, sludge holding | Large continuous plants where power cost dominates |
For blown-air systems see our turbo blower, Roots air blower and air diffuser. Efficiency figures come from engineering white papers and vary by design.
Key Benefits
A pump that stops is an ETP that stops, so reliability matters more than price.
- No priming and no suction lift problem, because the pump sits in the liquid
- Non-clog vortex or cutter impellers for sewage with solids and fibres
- Compact and quiet, with no separate pump room in most wet wells
- Stainless agitator option (EFD) to lift settled sludge for pumping
- Aerator option that adds oxygen and mixing without a blower
- Local engineering and after-sales support from Techno Bangla
Which Pump Fits Your Plant?
Choose a Submersible Pump When
- The sump or wet well is deep and suction lift is a problem
- Noise and floor space are limited
- The liquid carries solids, rags or sludge
- You can fit a guide rail and lift the pump for service
- Liquid stays within the pump's temperature rating
Choose a Self-Priming Pump When
- The tank is shallow and you want easy, dry service access
- The liquid is hot or chemically aggressive
- The pump must move between sites
- Pumping runs continuously day and night
- See our self-priming open impeller pump.
Where Submersible Sewage Pumps Are Used
Any sump, pit or tank that collects wastewater with solids.
- Textile and Dyeing ETP
- Garment Factory Drainage
- STP Wet Well
- Equalization Tank
- Sludge and Slurry Sump
- Basement Drainage
- Aeration Tank Mixing
- Aquaculture Aeration
How to Choose the Right Submersible Pump
Share these details with our engineers and we will recommend a suitable series and size.
- Solids type and size. Soft solids suit a vortex impeller. Rags, plastic or hard objects suit a cutter series. The pump's solids passage must exceed your largest solid.
- Flow and total head. Add static lift and pipe friction, then read the flow from the pump curve at that head. Every 1 m of head is about 9.8 kPa.
- Liquid temperature and chemistry. Distributor listings for some Evergush series show liquid limits near 40 °C and no seawater use. Hot dye-house effluent needs a check.
- Duty and standby. Listings for some series advise against 24-hour continuous running. Use a duty and standby pair with alternation, and confirm the duty rating on the datasheet.
- Submergence and installation. The motor needs enough liquid above it for cooling. Use level controls to stop the pump before it runs dry.
Frequently Asked Questions
Who supplies Evergush submersible pumps in Bangladesh?
Techno Bangla Creation Ltd. supplies Evergush submersible sewage pumps and aerators from Taiwan, from our Dhaka office in Mohakhali. We help select the series, supply the pump with guide rail and controls, and support it after installation. Call +880 1716 825385 or email marketing@technocreationbd.com.
Where is Evergush made?
Evergush is a Taiwanese brand of Asia Automatic Pump Co., Ltd., headquartered in Kaohsiung. The company states it has made pumps since 1969. Its range includes sewage, cutter, slurry, grinder and aerator pumps.
What is the difference between a sewage pump and an effluent or sump pump?
Sewage pumps have large impeller clearances to pass solids and fibres. Sump and effluent pumps are for mostly clean or grey water with small solids. Using the wrong type is the most common cause of clogging, so match the pump to the solids in your liquid.
Which Evergush series do I need: EF, EFK, EFD or EFA?
Choose EF for sewage with soft solids and fibres, EFK when hard or stringy objects are present, EFD for settled sludge or slurry that needs stirring, and EFA for aeration duty. Design details vary by model, so our engineers confirm the series from your wastewater and duty point.
How big a solid can a submersible sewage pump pass?
It depends on the impeller. Evergush lists about 22 mm for the EFK10A cutter pump and about 35 mm for the EAF30T. The pump’s solids passage must exceed the largest solid in your wastewater, and cutter models are for stringy or hard objects.
What is the difference between a surface aerator and a submersible aerator?
A surface aerator churns the water from above and can spray and make noise. A submersible aerator sits underwater and draws in its own air through a jet, so it needs no blower, and it mixes the tank at the same time. It suits small and medium tanks.
Is a submersible sewage pump suitable for ETP and STP in Bangladesh?
Yes, submersible pumps are widely used in ETP and STP sumps, wet wells and equalization tanks. Check the liquid temperature and chemistry first, because hot dyeing effluent can exceed some models' limits. Our engineers review this during selection and recommend a standby unit.
How much does an Evergush submersible sewage pump cost in Bangladesh?
It is quoted by model, because material, impeller type, motor, phase and accessories (float, guide rail, control panel) all change the price. Small consumer pumps are not comparable to industrial ETP duty units. Send your flow, head and wastewater type for a quotation.
