Key Features & Advantages
- Y2 National Standard Motor: High-efficiency motors manufactured to strict national standards, ensuring reliable power and energy savings.
- Premium Brand Bearings: Incorporated to minimize friction, reduce operating noise, and significantly extend the pump’s service life.
- Dual Silicon Carbide Mechanical Seals: Utilizes a double-seal configuration with wear-resistant silicon carbide faces, offering exceptional leak protection and durability in abrasive or sandy water conditions.
- Food-Grade White Oil: The motor cavity is filled with high-purity, food-grade white oil. This serves as an excellent coolant and lubricant, ensuring smooth operation of internal components, providing rust protection, and is environmentally friendly.
Model Number Instruction
The model code provides key specifications at a glance:
- QY: Oil-Immersed Submersible Pump
- First Number (e.g., 15, 25): Rated Flow (m³/h)
- Second Number (e.g., 26, 17): Rated Head (m)
- Third Number (e.g., 2.2, 3): Motor Power (kW)
Example: QY15-26-2.2= Oil-immersed pump with 15 m³/h flow, 26m head, and 2.2kW power.
Technical Specifications (Partial List)
Below is a selection of models from the comprehensive QY series. The full range includes models from 2.2kW to 22kW, catering to a wide variety of flow and head requirements.
| No. | Model | Voltage (V) | Rated Flow (m³/h) | Rated Head (m) | Power (kW) | Pipe Dia. (mm) | (Inch) |
|---|---|---|---|---|---|---|---|
| 1 | QY15-26-2.2 | 380 | 15 | 26 | 2.2 | 50 | 2″ |
| 2 | QY25-17-2.2 | 380 | 25 | 17 | 2.2 | 65 | 2.5″ |
| 3 | QY40-12-2.2 | 380 | 40 | 12 | 2.2 | 80 | 3″ |
| 4 | QY65-7-2.2 | 380 | 65 | 7 | 2.2 | 100 | 4″ |
| 5 | QY20-36/2-3 (20m cable) | 380 | 20 | 36 | 3 | 65 | 2.5″ |
| 6 | QY15-36-3 | 380 | 15 | 36 | 3 | 50 | 2″ |
| 7 | QY25-26-3 | 380 | 25 | 26 | 3 | 65 | 2.5″ |
| 8 | QY40-16-3 | 380 | 40 | 16 | 3 | 80 | 3″ |
| 9 | QY65-10-3 | 380 | 65 | 10 | 3 | 100 | 4″ |
| 10 | QY160-5-3 | 380 | 160 | 5 | 3 | 150 | 6″ |
| 11 | QY12.5-50-4 | 380 | 12.5 | 50 | 4 | 50 | 2″ |
| 12 | QY25-32-4 | 380 | 25 | 32 | 4 | 65 | 2.5″ |
| … | … | … | … | … | … | … | … |
| 33 | QY25-65/2-7.5 | 380 | 25 | 65 | 7.5 | 65 | 2.5″ |
Special Variants
- Seawater Models: Specific models (e.g.,
QY65-10-3with plastic/stainless steel shaft) are available for seawater or highly corrosive liquid applications.
Applications
- General dewatering and drainage in construction sites, basements, and tunnels.
- Agricultural irrigation and water transfer.
- Industrial process water and coolant circulation.
- Quarry and mine drainage.
- Emergency flood control and water management.
Why Choose DONGTAO QY Series?
- Enhanced Thermal Management: Oil immersion provides superior motor cooling, preventing overheating during continuous operation.
- Exceptional Seal Life: Dual silicon carbide seals offer robust protection against leakage, critical for submersible reliability.
- Corrosion & Wear Resistance: The combination of quality materials and food-grade oil protects internal components, extending pump life in harsh environments.
- Proven Durability: Built with industrial-grade components to withstand demanding applications and ensure minimal downtime.
- Wide Product Range: A comprehensive selection of models allows for precise matching to your specific flow, head, and power requirements.
Contact Us for the Full Catalog & Quotation
The table above showcases a portion of the available models. For the complete technical specification sheet, pricing, or to discuss which QY model best fits your project, please contact our sales or technical support team.
