Key Features & Advantages
- National Standard Motor: Powered by high-efficiency, durable motors manufactured to national standards, ensuring reliable and continuous operation in the most challenging wastewater environments.
- Premium Brand Bearings: Utilizes high-precision, high-grade bearings to ensure smooth, stable, and quiet running. This significantly reduces vibration and wear, contributing to longer service life and minimal maintenance downtime.
- Silicon Carbide Mechanical Seals: Equipped with wear-resistant and chemically inert Silicon Carbide (SiC) seals. This is critical for abrasive sewage applications, as SiC provides exceptional resistance to sand, grit, and other solids, dramatically extending seal life and preventing leakage.
- Full Head, Wide Voltage Design: Incorporates DONGTAO’s reliable performance technology. Pumps are designed for stable operation across their performance curve. The motors are engineered for wide voltage tolerance, ensuring dependable functionality in areas with unstable grid power (typically designed for standard 3-phase 380V operation as per the spec table).
Technical Specifications (Categorized by Power & Speed)
Given the extensive range, the WQ series is best presented in key segments. The tables below showcase a selection of models. The full series includes dozens of models to meet precise flow and head requirements.
Segment 1: WQ Series (2.2kW ~ 7.5kW) – 2-Pole (High Speed, ~2900 RPM)
Ideal for applications requiring higher heads at moderate flows.
| No. | Model | Voltage (V) | Speed (RPM) | Rated Flow (m³/h) | Rated Head (m) | Power (kW) | Pipe Dia. (Inch) |
|---|---|---|---|---|---|---|---|
| 1 | 50WQ15-20-2.2 | 380 | 2860 | 15 | 20 | 2.2 | 2″ |
| 2 | 65WQ20-18-2.2 | 380 | 2860 | 20 | 18 | 2.2 | 2.5″ |
| 3 | 80WQ40-12-2.2 | 380 | 2860 | 40 | 12 | 2.2 | 3″ |
| 4 | 100WQ50-10-2.2 | 380 | 2860 | 50 | 10 | 2.2 | 4″ |
| 5 | 50WQ15-30-3 | 380 | 2860 | 15 | 30 | 3 | 2″ |
| 6 | 65WQ25-24-3 | 380 | 2860 | 25 | 24 | 3 | 2.5″ |
| … | … | … | … | … | … | … | … |
| 23 | 150WQ100-12-7.5 | 380 | 2900 | 100 | 12 | 7.5 | 6″ |
Segment 2: WQ Series (11kW ~ 22kW) – 2-Pole (High Speed, ~2900 RPM)
For high-head, medium to high-flow sewage lifting applications.
| No. | Model | Voltage (V) | Speed (RPM) | Rated Flow (m³/h) | Rated Head (m) | Power (kW) | Pipe Dia. (Inch) |
|---|---|---|---|---|---|---|---|
| 1 | 65WQ25-50-11 | 380 | 2900 | 25 | 50 | 11 | 2.5″ |
| 2 | 80WQ40-40-11 | 380 | 2900 | 40 | 40 | 11 | 3″ |
| 3 | 100WQ80-25-11 | 380 | 2900 | 80 | 25 | 11 | 4″ |
| 4 | 150WQ100-20-11 | 380 | 2900 | 100 | 20 | 11 | 6″ |
| … | … | … | … | … | … | … | … |
| 22 | 200WQ200-20-22 | 380 | 2900 | 200 | 20 | 22 | 8″ |
Segment 3: WQ Series (5.5kW ~ 75kW) – 4-Pole (Standard Speed, ~1450 RPM)
Optimized for high-volume, lower-head sewage transfer and drainage, offering efficient handling of large flows.
| No. | Model | Voltage (V) | Speed (RPM) | Rated Flow (m³/h) | Rated Head (m) | Power (kW) | Pipe Dia. (Inch) |
|---|---|---|---|---|---|---|---|
| 1 | 80WQ80-13-5.5 | 380 | 1450 | 80 | 13 | 5.5 | 3″ |
| 2 | 100WQ110-10-5.5 | 380 | 1450 | 110 | 10 | 5.5 | 4″ |
| 3 | 150WQ150-7-5.5 | 380 | 1450 | 150 | 7 | 5.5 | 6″ |
| 4 | 80WQ80-20-7.5 | 380 | 1450 | 80 | 20 | 7.5 | 3″ |
| … | … | … | … | … | … | … | … |
| 24 | 350WQ1000-15-75 | 380 | 1450 | 1000 | 15 | 75 | 14″ |
Applications
- Municipal wastewater treatment plants (inlet pumping, intermediate lifting, sludge transfer).
- Industrial effluent and process wastewater handling.
- Large-scale commercial and residential complex sewage systems.
- Flood control, stormwater, and rainwater drainage pumping stations.
- Construction site dewatering and mine drainage.
Why Choose DONGTAO WQ Heavy-Duty Sewage Pump Series?
- Unmatched Range & Flexibility: One of the most comprehensive sewage pump series available, with models from 2.2kW to 75kW in both 2-pole and 4-pole designs, allowing for precise performance matching.
- Engineered for Abrasion: Silicon carbide seals and robust construction are specifically chosen to withstand the abrasive nature of raw sewage and industrial waste.
- Powerful & Stable Performance: High-torque motors and precision bearings deliver reliable, continuous operation under heavy loads, minimizing unexpected failures.
- Professional-Grade Solution: Designed for the core needs of wastewater infrastructure, offering the durability and performance required by engineers and contractors.
Contact Us for Your Wastewater Project
Selecting the correct heavy-duty sewage pump is critical for system efficiency and longevity. Contact our technical sales team with your specific flow (m³/h), head (m), and solids-handling requirements. We will provide the complete technical datasheet, assist with model selection from the full WQ series, and prepare a competitive quotation for your project.
