Key Features & Advantages
- Full Head, Wide Voltage Design: The signature technology of this series. The pump can operate stably at any point from zero head to its rated maximum head, eliminating concerns of overload damage due to head variations. Furthermore, the motor excels in voltage adaptability:
- Single-Phase Motors (QDX): Operate normally within a wide voltage range of 160V–230V.
- Three-Phase Motors (QX): Operate normally within a voltage range of 330V–380V. This design is ideal for regions with unstable grid power, guaranteeing continuous pump operation.
- National Standard Motor: Equipped with high-efficiency, reliable Y-series motors compliant with national standards, ensuring smooth and durable performance.
- Premium Brand Bearings: Incorporates bearings from reputable brands in critical rotating parts, effectively reducing friction loss for quieter operation and longer service life.
- Dual O-Ring Seals: Utilizes a double O-ring sealing structure at key shaft sealing points, providing an extra layer of waterproofing and leakage protection, thereby enhancing overall sealing reliability.
Model Number Instruction
Understanding the model code allows for quick identification of the pump’s key parameters:
- Q: Submersible Pump (Three-phase)
- QD: Submersible Pump (Single-phase)
- X: Small / Clean Water Type
- First Number (e.g., 3, 10, 15): Rated Flow (m³/h)
- Second Number (e.g., 16, 20, 30): Rated Head (m)
- Third Number (e.g., 0.37, 0.55, 0.75): Motor Power (kW)
- (Aluminum shell is the default configuration and is not explicitly stated in the model number.)
Example: QDX3-16-0.37= Single-phase aluminum shell submersible pump with 3 m³/h flow, 16m head, and 0.37kW power.
Technical Specifications
Single-Phase (QDX) Models (Partial List)
| No. | Model | Voltage (V) | Rated Flow (m³/h) | Rated Head (m) | Power (kW) | Pipe Dia. (mm) |
|---|---|---|---|---|---|---|
| 1 | QDX3-16-0.37 | 220 | 3 | 16 | 0.37 | 25 |
| 2 | QDX3-20-0.55 | 220 | 3 | 20 | 0.55 | 25 |
| 3 | QDX10-10-0.55 | 220 | 10 | 10 | 0.55 | 40 |
| 4 | QDX15-7-0.55 | 220 | 15 | 7 | 0.55 | 50 |
| 5 | QDX3-27-0.65 | 220 | 3 | 27 | 0.65 | 25 |
| 6 | QDX10-12-0.65 | 220 | 10 | 12 | 0.65 | 50 |
| 7 | QDX3-30-0.75 | 220 | 3 | 30 | 0.75 | 25 |
| 8 | QDX7-18-0.75 | 220 | 7 | 18 | 0.75 | 40 |
| 9 | QDX10-16-0.75 | 220 | 10 | 16 | 0.75 | 50 |
| 10 | QDX15-10-0.75 | 220 | 15 | 10 | 0.75 | 65 |
| 11 | QDX25-9-0.75 | 220 | 25 | 9 | 0.75 | 65/80 |
| … | … | … | … | … | … | … |
| 33 | QDX100-6-3 | 220 | 100 | 6 | 3 | 150 |
Three-Phase (QX) Models (Partial List)
| No. | Model | Voltage (V) | Rated Flow (m³/h) | Rated Head (m) | Power (kW) | Pipe Dia. (mm) |
|---|---|---|---|---|---|---|
| 1 | QX40-13-2.2 | 380 | 40 | 13 | 2.2 | 80 |
| 2 | QX65-8-2.2 | 380 | 65 | 8 | 2.2 | 100 |
| 3 | QX100-6-3 | 380 | 100 | 6 | 2.2* | 150 |
*Note: For the model in row 3 (QX100-6-3), the power in the document is listed as “2.2” kW, but the model number suggests “3” kW. Please refer to the actual nameplate on the product or contact us for confirmation.
Typical Applications
- Domestic water supply and pressure boosting for homes, villas, and residential communities.
- Irrigation and drainage for farmland, orchards, and greenhouses.
- Industrial cooling water circulation and equipment water supply.
- Garden sprinkling, landscape water features.
- Construction site dewatering, basement drainage.
Why Choose DONGTAO Q(D)X Aluminum Shell Pumps?
- Superior Adaptability: Full head and wide voltage design handles variable working conditions and power fluctuations with ease.
- Assured Reliability: National standard motors, premium bearings, and dual-sealing ensure long-term, stable operation.
- Lightweight & Efficient: Aluminum alloy housing is light, offers excellent heat dissipation, and is easy to install and maintain.
- Comprehensive Range: Models from 0.37kW to 3kW with various flow and head combinations to meet diverse application needs.
Get More Information
For the complete model list, product catalog, or to receive a quotation and professional selection advice based on your specific requirements (flow, head, voltage), please contact our sales or technical support team.
