Permanent Magnet Submersible Axial Flow Pump

The Newest Permanent Magnet Submersible Axial Flow Pump is a benchmark product for low-lift, high-flow fluid transport, designed with energy efficiency and environmental sustainability at its core. Leveraging Kairun’s advanced R&D capabilities and ISO9001-standardized production system, the pump integrates high-efficiency permanent magnet synchronous motor (PMSM) technology with a compact structure, robust protection, and intelligent control to deliver reliable and cost-effective fluid transport solutions for municipal drainage, agricultural irrigation, and water diversion projects.

Why should you buy our products?

The pump is powered by a rare-earth neodymium-iron-boron permanent magnet synchronous motor, which eliminates rotor copper losses and slip losses present in conventional asynchronous motors. This results in significantly higher efficiency under all operating conditions, saving over 30% energy compared to traditional pumps of the same power. The near-unity power factor also reduces reactive power consumption, minimizing grid impact and lowering long-term electricity costs.

Compact, Lightweight, and Easy to Install

The pump employs an electromechanical integrated design, precisely aligning the motor and pump body on the same axis. Its lightweight, compact structure reduces volume by 1/3 and weight by 40% compared to conventional pumps of the same power. This not only simplifies installation but also eliminates the need for complex civil engineering and shaft alignment, cutting installation time by 95%. Customers can save 30%-40% of pump station construction costs, making it ideal for areas with fluctuating water levels, such as rivers and lakes, or confined installation spaces.

Reliability and Protection

The Durable Permanent Magnet Submersible Axial Flow Pump is designed for long-term underwater operation in raw water or lightly contaminated water (sand content ≤2%, water temperature ≤50°C). Key protection features include:

IP68-rated waterproof design

Dual tungsten carbide mechanical seals with oil chamber buffering

F-class insulation to prevent moisture and corrosion intrusion

Multiple built-in intelligent protections for overheat, overcurrent, overload, phase loss, and dry-run scenarios

Paired with a dedicated variable frequency controller, the pump supports wide-range stepless speed adjustment, soft start/stop, and remote monitoring via mobile app or computer, enabling unattended operation.

Flow Range and Customization

The pump covers flow rates from 500 to 15,000 m³/h with a head range of 2-10 meters, and can be customized with cast iron, stainless steel, or other material options to suit different working conditions.

With 24-hour after-sales support, nationwide service coverage, and lifetime maintenance guarantees, Kairun ensures low operational risk for customers. The pump’s high efficiency, easy installation, reliable performance, and intelligent operation make it the preferred choice for modern green water conservancy projects, reflecting Kairun’s technological expertise and commitment to quality.

Product Parameters

Where can this product be used?

The Kairun's Permanent Magnet Submersible Axial Flow Pump combines high energy efficiency, easy installation, and stable performance to meet the demands of low-head, high-flow green fluid transport. Designed to serve a wide range of industries—including municipal drainage, agriculture, water resources, and industrial applications—it is the preferred choice for projects seeking energy savings and operational efficiency. Its permanent magnet synchronous motor and compact structural design allow it to adapt to various installation environments while balancing environmental benefits and operational convenience.

Municipal Drainage and Stormwater Lift

In urban applications, this pump is ideal for emergency flood control in low-lying areas, upgrading old pump stations, and transporting rainwater in new city districts. Its design is particularly suitable for regions with fluctuating water levels, such as areas along rivers and lakes. The quick deployment capability eliminates the need for complex civil construction, while its energy-efficient design significantly reduces long-term electricity costs. Integrated intelligent monitoring enables real-time tracking of operational status, ensuring safe and reliable flood control during peak rainfall periods.

Agricultural Irrigation

For large irrigation districts and agricultural water hubs, the pump offers a wide flow range of 500–15,000 m³/h, accurately meeting the needs of different irrigation scales. It can reliably transport river and reservoir water containing small amounts of sediment, while its high efficiency helps reduce water consumption and operational costs, supporting sustainable and cost-effective agriculture.

Water Resources and Hydropower Applications

In water resource projects, the pump is ideal for river ecosystem replenishment, large reservoir water regulation, and temporary drainage for construction projects. Its IP68-level protection and stable operation make it suitable for complex water environments, ensuring long-term reliability even in challenging conditions.

Industrial Applications and Space-Constrained Installations

In industrial settings, the Quality Permanent Magnet Submersible Axial Flow Pump performs reliably for industrial park circulation water, mining tailings pond drainage, and stormwater lift in wastewater treatment plants. Its compact design also makes it suitable for underground pump stations, scenic areas, and other installations where space is limited or environmental aesthetics are important, combining green fluid transport with a visually unobtrusive installation.What Should Be Considered When Using the Pump?

Proper operation and regular maintenance are essential to ensure the long-term high-efficiency performance and extended service life of the Durable Permanent Magnet Submersible Axial Flow Pump. Considering the characteristics of its permanent magnet synchronous motor and underwater operation requirements, here are the key points in installation, operation, and maintenance to maximize energy efficiency and avoid operational risks.

Installation Guidelines

Stable and Level Mounting – Ensure the pump body is installed horizontally and securely, with the base tightly fixed to the installation surface. This prevents misalignment caused by vibration, particularly in areas with fluctuating water levels. Proper base anchoring is crucial for stability.

Cable Installation – Permanent magnet motors require careful cable management. Use special waterproof cables, avoid dragging, crushing, or contact with sharp objects, and ensure cable joints are sealed with original manufacturer components to prevent water ingress and short circuits.

Submersion Depth and Positioning – The Permanent Magnet Submersible Axial Flow Pump inlet should be positioned at least 0.5 meters above sediment at the water bottom and away from dense aquatic plants to prevent clogging. After installation, manually rotate the pump to ensure it moves freely and verify the motor rotation direction before startup.

Operation and Maintenance Guidelines

Monitor Electrical and Mechanical Conditions – Continuously monitor motor current, voltage, noise, and temperature using the intelligent control system. If you notice abnormal current, unusual noise, or reduced flow, stop the pump immediately and investigate the issue.

Avoid Dry Running and Extreme Conditions – Never run the pump dry. Do not operate in media with sand content exceeding 2% or water temperatures above 50°C for extended periods, as this may damage the impeller or mechanical seals.

Regular Maintenance – Inspect and maintain core components every 3–6 months. Clean the filter cover of debris, check the mechanical seal, and verify the motor insulation performance. Avoid exposing the pump to strong magnetic fields, which may interfere with motor operation. Before long-term storage, remove the pump from water, dry it thoroughly, and store it in a safe place. Before restarting, check the motor insulation to ensure safe operation.