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JINAOTE Submersible Axial Flow Pump is designed for high-flow and low-head water transfer applications where reliable continuous operation is required. The product includes two main series: QZB Axial Flow Submersible Pump and QHB Mixed Flow Submersible Pump, developed as advanced alternatives to conventional pump and motor systems.
Unlike traditional split-type pumping units, the pump and motor are integrated into one compact submersible structure. This design simplifies installation, reduces construction requirements, and improves operational reliability in demanding environments such as flood control, drainage stations, irrigation systems, and industrial water transfer projects.
The fully enclosed dry-type submersible three-phase asynchronous motor operates safely while completely immersed in water. With efficient water cooling, low operating noise, and reduced heat accumulation, the pump enables the construction of compact underground pump stations while minimizing civil engineering costs and installation space.
The pump motor assembly is installed as a complete submerged unit, eliminating the need for complex alignment between separate pump and motor components. Compared with traditional pump stations, installation time can be reduced by up to 95%, improving project efficiency and reducing labor requirements.
The motor operates directly in the surrounding water, providing excellent cooling performance and preventing overheating during continuous operation. This design significantly reduces operating noise and allows installation in underground or enclosed pump stations without affecting surrounding environments.
The motor adopts a fully enclosed dry-type structure with:
Class F insulation system (155°C temperature resistance)
IP68 protection rating
Double or triple mechanical seals
Auxiliary sealing structure
Leakage detection system
Winding temperature monitoring
Bearing temperature monitoring
All monitoring signals are transmitted to the electrical control cabinet, supporting safe operation, automatic protection, and remote monitoring.
JINAOTE Submersible Axial Flow Pump is widely used in applications requiring large flow capacity and stable water transfer performance, including:
Industrial water supply and drainage
Mining facility drainage systems
Shipyard drainage projects
Urban flood control and municipal drainage
Agricultural irrigation and drainage
Power plant cooling water and drainage systems
River and lakeside pumping stations
The QZB Axial Flow Submersible Pump is suitable for low-head and high-flow applications, while the QHB Mixed Flow Submersible Pump provides higher efficiency and stronger cavitation resistance for applications with fluctuating water levels and higher head requirements.
The pump is designed for raw water or lightly contaminated wastewater handling under the following conditions:
| Parameter | Specification |
|---|---|
| Maximum Liquid Temperature | ≤50°C |
| Medium pH Range | 4–10 |
| Solid Volume Fraction | <2% |
| Medium Density | <1.2 × 10³ kg/m³ |
| Comparison Item | Submersible Axial Flow Pump | Traditional Pump Unit |
|---|---|---|
| Installation | Integrated installation, simplified construction | Requires separate pump and motor installation |
| Installation Time | Reduced by up to 95% | Longer installation period |
| Cooling Method | Direct water cooling | Air cooling required |
| Noise Level | Lower operating noise | Higher mechanical noise |
| Pump Station Structure | Suitable for underground stations | Requires larger above-ground structures |
| Construction Cost | Reduced by approximately 30–40% | Higher civil construction investment |
| Flood Resistance | Motor protected underwater | More vulnerable to flooding |
JINAOTE focuses on the design and manufacturing of high-performance submersible pumping equipment for industrial, municipal, and agricultural applications. Through integrated motor-pump design, advanced sealing technology, and intelligent monitoring systems, JINAOTE pumps provide reliable operation in environments with frequent water level changes and demanding drainage requirements.
The combination of high flow capacity, compact installation structure, and long-term submerged operation makes the Submersible Axial Flow Pump an efficient solution for modern pumping stations and large-scale water transfer projects.
Axial flow pumps are mainly designed for large flow and low head applications, while mixed flow pumps provide higher head capability with improved efficiency and cavitation resistance.
Yes. The pump uses a fully enclosed IP68 submersible motor designed for continuous operation while completely submerged.
It is suitable for raw water and lightly contaminated wastewater with a solid volume fraction below 2%.
The standard operating temperature is up to 50°C.
No. The motor and pump are integrated into one submersible unit, simplifying installation.
The motor includes mechanical seals, leakage detection, winding temperature monitoring, and bearing temperature monitoring systems.
Yes. It is especially suitable for riverbanks, lakesides, and flood-prone pumping stations where water levels fluctuate.
Motors up to 315 kW are available in 380 V or 600 V, while larger motors use 6 kV or 10 kV voltage options.
