FEATURES
- Solid pump structure with a dry-type motor and dual mechanical seals for waterproof protection.
- Equipped with an impeller guide flow vane for high water flow and indefinite operation.
- IP68-rated protection ensures durability.
- Lightweight design allows for easy installation and maintenance.
- Features centrifugal, axial flow, and mixed flow impellers for low head and high flow, maximizing energy efficiency and economic benefits.
- The impeller is made from high-quality aluminum bronze, offering excellent resistance to seawater corrosion, abrasion, and minimal sand wear.
APPLICATIONS
- Fish farming and agricultural irrigation
- Drainage of low-lying areas
- Sewage treatment
- Landscape waterfalls
- Other uses include handling high-volume water flow
This large flow drainage submersible pump is specifically designed to handle high volumes of water efficiently, making it ideal for agricultural and industrial applications that require quick water transfer. The pump features a solid dry-type motor and dual mechanical seals, providing excellent waterproof protection and long-lasting performance.
The pump is equipped with an advanced impeller system, including centrifugal, axial flow, and mixed flow designs, ensuring high water flow at low head pressures. This enhances energy efficiency while delivering powerful performance, making it ideal for irrigation, drainage in low-lying areas, and sewage treatment where large volumes of water need to be moved quickly and reliably.
The impeller is made from high-quality aluminum bronze, offering excellent resistance to seawater corrosion and minimal wear, even in sandy environments. This durability significantly reduces maintenance needs and extends the pump’s lifespan, making it especially suitable for fish farming and coastal regions.
The applications of this pump extend beyond agricultural irrigation and drainage. It is also highly effective in sewage treatment plants, landscape waterfalls, and other environments where consistent, high-volume water transfer is required. Its lightweight design makes installation and maintenance convenient, and the IP68 protection rating ensures reliable operation even when fully submerged for extended periods.
In summary, this large flow submersible water pump is a versatile and high-performance solution for large-scale water management, offering reliable service across multiple industries while minimizing energy costs and maintenance requirements.
Heavy-Duty Large Flow Submersible Pump for Fish Farming, Agricultural Irrigation and Water Drainage
Our Large Flow Stainless Steel Submersible Drainage Pump is designed for applications requiring high-volume water transfer, drainage and circulation. Available with 6-inch, 8-inch, 10-inch and 12-inch discharge outlets, the pump delivers flow rates from 120 to 510 m³/h, depending on the model.
With a waterproof motor, IP68 protection, dual mechanical seals and corrosion-resistant stainless steel pump housing, this submersible pump is suitable for freshwater fish farming, agricultural irrigation, low-lying area drainage, landscape water features and general water transfer.
It is available in both centrifugal-flow and axial-flow configurations, with different power options from 2.2 kW to 15 kW.
Large Water Flow from 120 to 510 m³/h
Designed for high-volume water transfer, the pump provides a maximum rated flow of 510 m³/h, making it suitable for large fish farms, agricultural irrigation systems and drainage applications.
6 to 12 Inch Discharge Options
Multiple discharge sizes are available:
- 6 inch / 150 mm
- 8 inch / 200 mm
- 10 inch / 250 mm
- 12 inch / 300 mm
This makes it easier to match the pump with different water pipelines and drainage systems.
Stainless Steel Pump Construction
The pump housing and key components are designed for demanding water environments. The stainless steel construction provides good resistance to water corrosion and wear, helping extend service life in continuous-duty applications.
IP68 Waterproof Protection
The fully submersible motor is designed with IP68 protection, allowing the pump to operate underwater while reducing the risk of water entering the motor.
Dual Mechanical Seal
The pump uses a dual mechanical seal system to improve sealing performance and provide additional protection for the motor during underwater operation.
Heavy-Duty Bearing System
A deep-groove ball bearing structure supports stable operation and helps reduce maintenance requirements during long-term use.
High-Efficiency Impeller Design
Different models use centrifugal or axial-flow impeller designs according to the required flow and head conditions, providing efficient water transfer for different applications.
Easy Installation and Maintenance
The compact vertical submersible structure makes installation straightforward. The pump can be placed directly into the water without requiring a separate dry installation room.
Applications
This large flow submersible pump can be used in a wide range of water management applications.
Fish Farming & Aquaculture
Suitable for:
- Fish farm water exchange
- Pond drainage
- Freshwater circulation
- Aquaculture water transfer
- Low-lying fish pond drainage
- Large-volume farm water pumping
The high-flow models are especially suitable for commercial aquaculture farms requiring rapid water transfer.
Agricultural Irrigation
The pump can be used for:
- Agricultural irrigation
- Farm water transfer
- Reservoir pumping
- Irrigation drainage
- Water supply for agricultural areas
Drainage of Low-Lying Areas
Designed for moving large volumes of water from low-lying areas, ponds, reservoirs and other drainage locations.
Landscape Water Features
Suitable for:
- Landscape waterfalls
- Large water features
- Decorative water circulation
- Artificial ponds
- Water circulation systems
General Freshwater Transfer
The pump can also be used for other high-volume freshwater pumping applications where the required flow and head fall within the pump’s operating range.
Large Flow Submersible Pump Specifications
| Model | Power | Discharge | Phase | Standard Head | Standard Flow | Weight | Max. Solid | Dimensions (W × H) |
|---|---|---|---|---|---|---|---|---|
| WLT-63 | 2.2 kW / 3 HP | 6″ / 150 mm | 3 | 3 m | 120 m³/h | 78 kg | 20 mm | 285 × 740 mm |
| WLT-150 | 3.7 kW / 5 HP | 6″ / 150 mm | 3 | 5 m | 120 m³/h | 87 kg | 20 mm | 285 × 790 mm |
| WLT-200 | 5.5 kW / 7.5 HP | 8″ / 200 mm | 3 | 4 m | 210 m³/h | 120 kg | 22 mm | 340 × 923 mm |
| WLT-250 | 7.5 kW / 10 HP | 10″ / 250 mm | 3 | 4 m | 330 m³/h | 160 kg | 22 mm | 380 × 1015 mm |
| WLT-300 | 11 kW / 15 HP | 12″ / 300 mm | 3 | 5 m | 420 m³/h | 212 kg | 23 mm | 430 × 1072 mm |
| WLT-1220 | 15 kW / 20 HP | 12″ / 300 mm | 3 | 6 m | 510 m³/h | 215 kg | 23 mm | 430 × 1072 mm |
Note: Special specifications can be customized according to project requirements.
Technical Specifications
| Item | Specification |
|---|---|
| Application | Agricultural irrigation, freshwater, water drainage |
| Pump Type | Submersible pump |
| Discharge Size | 6″, 8″, 10″, 12″ |
| Flow Range | 120–510 m³/h |
| Head Range | 3–6 m |
| Power Range | 2.2–15 kW |
| Motor Type | Dry-type motor |
| Motor Pole | 4 Pole |
| Frequency | 50 Hz / 60 Hz |
| Insulation Class | F |
| Protection | IP68 |
| Seal | Dual mechanical seal |
| Bearing | Deep groove ball bearing |
| Frame | Stainless steel |
| Pump Housing | Stainless steel |
| Top Cover | Cast iron |
| Cover | Cast iron |
| Impeller | Bronze |
| Seal Housing | Cast iron |
| Bearing Base | Cast iron |
| Cable | H07RN-F |
| Working Temperature | 0–40°C |
Centrifugal or Axial Flow Impeller Options
Different pump models use different hydraulic designs according to their flow and head requirements.
Centrifugal-flow impellers are suitable for applications requiring a combination of water flow and pumping head.
Axial-flow impellers are designed for moving very large volumes of water at relatively low head, making them particularly suitable for aquaculture water exchange, agricultural irrigation and drainage applications.
This allows customers to select a suitable pump according to the required flow rate, head and pipe size.
Why Choose This Large Flow Submersible Pump?
High Flow Capacity
With flow rates up to 510 m³/h, the pump is designed for large-scale water transfer.
Multiple Discharge Sizes
6–12 inch outlet options allow the pump to be matched with different pipeline systems.
Reliable Submersible Design
IP68 waterproof protection and dual mechanical seals help protect the motor during underwater operation.
Suitable for Aquaculture
The large-flow design is suitable for fish farms, aquaculture ponds and freshwater circulation systems.
Heavy-Duty Construction
Stainless steel pump components combined with cast iron structural parts provide a robust construction for demanding working environments.
OEM & Customized Specifications
Special pump specifications can be customized according to your required flow, head, power, voltage, discharge size and application conditions.
Performance Range
The available models cover a broad operating range:
Power: 2.2–15 kW
Discharge: 6–12 inch
Flow: 120–510 m³/h
Head: 3–6 m
Frequency: 50/60 Hz
Protection: IP68
For example, the 12-inch WLT-1220 model provides up to 510 m³/h standard flow with a 15 kW motor, making it suitable for high-volume freshwater transfer and drainage.
How to Select the Right Submersible Pump
To recommend the correct model, please provide:
- Required water flow – m³/h
- Required head – meters
- Pipe/discharge diameter – inch or mm
- Water type – freshwater, fish pond water, irrigation water, etc.
- Working depth
- Power supply – voltage, phase and frequency
- Continuous or intermittent operation
Our technical team can then recommend a suitable model based on your actual operating conditions.
Frequently Asked Questions
What sizes of submersible pumps are available?
We offer 6-inch, 8-inch, 10-inch and 12-inch discharge models, corresponding to 150 mm, 200 mm, 250 mm and 300 mm outlets.
What is the maximum flow rate?
The largest model, WLT-1220, has a standard flow rate of up to 510 m³/h.
Can this pump be used for fish farming?
Yes. The pump is suitable for freshwater aquaculture, fish farming water exchange, pond drainage and water circulation.
Is the pump fully waterproof?
Yes. The motor is designed with IP68 protection for submersible operation.
Can the specifications be customized?
Yes. Special specifications can be customized according to project requirements, including pump configuration and operating parameters.
What is the working temperature?
The standard working temperature range is 0–40°C.
Is it suitable for dirty water?
The models have a specified maximum solid-particle allowance of 20–23 mm, depending on the model. For water containing larger solids, sand or heavy debris, please provide the water conditions so the appropriate configuration can be selected.
