Custom Double-impeller Long shaft Pump Manufacturers

What are the advantages of the structural design of long shaft pump in practical applications?

Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. is committed to providing customers with efficient and reliable liquid delivery solutions, especially in the field of deep well and high head delivery. Our long shaft pumps can meet the liquid delivery needs under various complex working conditions with their unique design and advanced technology.
Deep well and high head delivery
The design concept of the long shaft pump is to solve the challenges faced by traditional pumps in deep well and high head applications. Compared with conventional pump types, the long shaft pump can effectively transport liquids in deep wells, groundwater and high head environments through its special long shaft design. The long shaft liquid pump of Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. adopts a customizable shaft and pump body connection method to ensure that the pump can achieve efficient extraction at deep water sources or high positions. This design not only overcomes the limitations of traditional pumps in high head and deep delivery, but also makes the long shaft pump widely used in various deep wells, reservoirs and underground liquid extraction scenarios.
Optimized pump body and shaft seal design
The pump body design of the long-axis pump has unique structural characteristics. Its length and compactness enable the pump to maintain stable liquid delivery over a large distance. Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. fully considered the working requirements of high head and high flow in the design of the pump body and shaft seal, and adopted special alloy materials that are wear-resistant and corrosion-resistant. This not only enhances the durability of the pump body, but also improves its operating stability under complex working conditions. Especially in environments with corrosive liquids such as chemical and mining industries, the corrosion-resistant design of the long-axis pump ensures its excellent performance under harsh conditions, thereby effectively reducing equipment failure rate and maintenance costs.
Sealless self-priming technology
Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd.'s long-axis pump series introduces sealless self-priming technology, which effectively avoids the problem that traditional pump seals are easily damaged under high temperature and high pressure environments. Through the optimized self-priming design, the long-axis pump can operate stably under dry start or low water level conditions, eliminating the trouble of traditional pumps requiring water filling or complex starting procedures. This self-priming function improves the application flexibility of the pump, enabling it to adapt to the extraction needs of different water sources, reducing dependence on the operating environment, thereby improving work efficiency and equipment reliability.
Efficient fluid dynamics design
Long-axis pumps show significant advantages in fluid dynamics design, especially in applications with large flow and high head, which can achieve stable and efficient liquid delivery. Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. ensures smoother fluid flow channels in the pump body through fine hydraulic calculations and optimized design, significantly reducing internal flow resistance. This optimization enables the pump to maintain efficient and stable operation under high head and high flow conditions, reflecting the company's deep foundation in technology accumulation and practical experience.
High temperature and high pressure resistance
Long-axis pumps are widely used in industries such as power and chemical industry that have strict requirements on temperature and pressure. In these fields, pumps not only need to withstand high temperatures, but also need to operate stably under high pressure environments. Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd.'s long-axis pumps are designed with high-strength and high-heat-resistant materials to ensure their reliability under high temperature and high pressure conditions. By using special high-temperature and high-pressure resistant materials in key components such as pump body, bearings, and shaft seals, long shaft pumps can demonstrate excellent performance in extreme working environments and meet customers' needs for long-term reliability of equipment.

What are the common faults of long shaft pumps?

In industrial applications, long shaft pumps are an important fluid conveying equipment, and their operating stability and reliability directly affect production efficiency. Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. is committed to providing high-performance long shaft pumps, but in actual applications, users may encounter some common faults.
Difficulty starting or failure to start
Long shaft pumps encounter difficulties or cannot start when starting, usually because the self-priming function of the pump fails to work properly or the motor is in abnormal condition. Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd.'s long shaft pumps use advanced sealless self-priming technology to ensure smooth starting in dry start or low water level conditions. However, in actual operation, if there is unexpelled air in the pump body or improper operation, it may cause starting problems.
To avoid such faults, it is recommended that users ensure that the air in the pump body has been completely discharged before starting. At the same time, the wear of the pump shaft and the integrity of the seal should be checked to ensure smooth water absorption. These preventive measures will effectively reduce the incidence of startup failures.
Excessive vibration during operation
If a long-shaft pump has excessive vibration during operation, it will affect the normal operation of the pump and may even accelerate the wear of bearings, seals and other key components, shortening the service life of the pump. The causes of vibration may include bending of the pump shaft, bearing wear, unbalanced impeller, or loose connection between the pump body and the motor.
During the design and manufacturing process, Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. pays attention to the precise matching of the shaft and the pump body, and ensures that the pump operates under efficient and stable conditions through high-precision processing equipment and strict quality control. If abnormal vibration is found during use, the pump shaft should be immediately checked for bending or deformation, whether the bearing needs lubrication or replacement, and whether the impeller has foreign matter or wear. In addition, ensuring that the pump is installed on a solid foundation to avoid external vibration interference is also an important measure to reduce the vibration amplitude.
Insufficient flow or reduced head
Insufficient flow or reduced head is another common problem, which is usually caused by the following factors: impeller damage or wear resulting in obstruction of water flow channel, suction pipe blockage or leakage, insufficient motor power to maintain the required flow and head, or air and impurities accumulated in the pump body affecting water absorption performance.
The long-shaft pumps of Jiangsu Double Wheel Pump Machinery Manufacturing Co., Ltd. are made of wear-resistant materials and are precisely designed to ensure efficient cooperation between the pump body and the impeller. Nevertheless, after long-term operation, impeller wear and pipe blockage may still cause a decrease in flow and head. Therefore, regular inspection of the pump impeller, piping system and motor power is an effective means to ensure stable operation of the pump. At the same time, regular cleaning of impurities and air in the pump body to ensure unobstructed fluid flow can help avoid the problem of insufficient flow.
Water leakage or leakage of the pump body
Water leakage or leakage of the pump body is a common fault of long-shaft pumps, which is usually related to problems such as sealing components and bearings. The sealing system of the long-shaft pump must be designed to ensure a tight connection between the pump body and the shaft to prevent water leakage. However, damage, aging or looseness of the seals may cause water leakage.
To prevent water leakage from the pump body, users should regularly check the status of the seals and replace aging or damaged parts in a timely manner. In addition, ensure that the installation and maintenance of the pump comply with the operating specifications to avoid leakage problems caused by external factors.