Mixed-flow pump technology has changed how Shanghai manages water. The city now uses advanced QZ and QH series pumps. These pumps increase efficiency and capacity. They also improve reliability. Liancheng’s innovation supports the city’s growing needs and helps ensure a steady water supply.
A mixed-flow pump moves water by combining the actions of both radial and axial flow pumps. This design allows the pump to handle large volumes of water at moderate pressure. In waterworks, engineers use mixed-flow pumps to move water quickly and efficiently. These pumps work well in large cities where water demand changes throughout the day.
The QZ and QH series stand out because of their advanced technology and smart design. They use adjustable impellers, which help control water flow and improve performance. The pumps have a compact structure, making them easy to install and maintain. Their strong materials, such as cast iron and stainless steel, ensure long-lasting use.
The following table shows how the QZ and QH series compare to older models:
| Feature | QZ/QH Series Pumps | Comparison to Old Models |
|---|---|---|
| Capacity | 20% larger | Yes |
| Efficiency | 3-5% higher | Yes |
| Flow Rate | 20-30% increase | Yes |
| Cavitation Resistance | Excellent | N/A |
These pumps also have low noise levels and require less maintenance. Their efficiency can reach up to 90%, which helps save energy and lower costs.

Shanghai faced many challenges before using the mixed-flow pump. The city’s old water systems could not keep up with rapid growth and rising water demand. Frequent maintenance and high energy use made operations costly. The new pumps solved these problems by offering higher flow rates, better efficiency, and reliable performance. Their ability to handle large volumes of water made them perfect for Shanghai’s busy urban environment.
Shanghai began upgrading its water infrastructure by introducing the QZ and QH series mixed-flow pumps. City engineers selected these pumps for several major waterworks projects. The pumps replaced older, less efficient models in key pumping stations. Liancheng’s team worked closely with local authorities to ensure smooth installation. The compact design of the pumps allowed for smaller pump stations. This change reduced construction time and costs. Adjustable impellers made it possible to fine-tune performance for different water demands. The city completed several milestones, including the modernization of the Yangpu and Minhang water plants. These projects set new standards for water management in Shanghai.
The new pumps brought many improvements to Shanghai’s water system. The city saw higher efficiency and greater reliability. The pumps handled larger volumes of water with less energy. This change helped lower operational costs. The advanced design also reduced noise and made maintenance easier. The use of strong materials increased the lifespan of the equipment. The pumps supported continuous water supply, even during peak demand.
City officials noted several key benefits:
Shanghai’s experience with the mixed-flow pump shows clear results. The Yangpu water plant reported a 20% increase in water delivery capacity after the upgrade. The Minhang project saw energy consumption drop by 5%. Maintenance teams spent less time on repairs, which kept the system running smoothly. The city saved up to 40% on construction costs for new pump stations. These achievements helped Shanghai meet the needs of a growing population. The success of these projects has inspired other cities to consider similar upgrades.
Shanghai continues to see new developments in water management technology. Engineers and manufacturers focus on making pumps more efficient and reliable. Recent advancements include:
These innovations help the mixed-flow pump meet the changing needs of a growing city. As technology advances, Shanghai can expect even better water management systems.
Liancheng plays a key role in the future of waterworks in Shanghai. The company leads research and development in pumps and fluid systems. It uses advanced production equipment, such as CNC machines and a top-level testing center, to create high-quality products. Liancheng invests in new technology and focuses on making environmentally friendly solutions.
| Benefit | Description |
|---|---|
| Enhanced service capabilities | Upgrades will help manage complex projects and support customer needs. |
| Faster delivery of parts | Improved workflows will make parts available more quickly. |
| Improved energy efficiency | Solar panels are expected to reduce energy waste by about 10% each month. |
| Increased capacity | Larger facilities will support maintenance and service across more regions. |
Shanghai faces challenges as its population and urban area grow. The city must handle more stormwater and update old drainage systems. With ongoing innovation and strong leadership from companies like Liancheng, Shanghai will continue to improve its water infrastructure for the future.
Mixed-flow pumps have transformed Shanghai’s waterworks. The city now enjoys higher efficiency, lower costs, and reliable service. Other cities can learn important lessons:
| Lesson Learned | Description |
|---|---|
| Cost-Effectiveness | Installation costs drop by 30-40% with simpler engineering. |
| Operational Simplicity | Integrated design makes management easier and faster. |
| High Reliability | Stable operation continues during changing water levels. |
Shanghai leads in water management technology. Future solutions will build on this success and inspire global innovation.