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Comparison Between Pumping Vessels And Fixed Pump Stations

2025-10-29

Comparison Between Pumping Vessels And Fixed Pump Stations

  1. Reduced investment costs. Since the water intake pump boat eliminates the need for complex civil engineering works and avoids the construction of cofferdams, it leads to significant cost savings. Typically, when the water level difference is around 10 meters, using a floating pump station can reduce investment by 20%. When the water level difference increases to about 20 meters, the savings rise to 30%. And when the difference exceeds 30 meters, investments can typically be cut by 40% to 50%. In other words, the greater the water level difference, the more substantial the cost savings achieved with a floating pump station.

  2. Short construction period. Pump boat construction takes less time compared to fixed pump stations—there’s no need to wait for low-water levels or build cofferdams, significantly shortening the project timeline. Additionally, construction is unaffected by rainy or snowy weather conditions. Typically, small-scale floating pump stations take about 100 days to build, medium-sized ones around 150 days, and large-scale stations approximately 200 days.

  3. The water quality from the intake is relatively good. The floating pump boat can draw water from 1.5 to 2 meters below the surface, and its height adjusts automatically with the water level—allowing it to capture high-quality water. In contrast, fixed pumping stations can only extract water from the bottom of rivers, lakes, and reservoirs, resulting in water with high sediment content, numerous pollutants, and poor overall quality.

  4. Usage is unrestricted—unlimited by water level fluctuations. Whether the water levels are exceptionally high or dangerously low due to drought, the intake capacity remains unaffected. In contrast, fixed pump stations are often constrained by water levels: during the 1998 flood season, numerous fixed pump stations along rivers and lakes were either submerged or rendered inoperable—or simply too risky to start—due to excessively high water levels, severely curtailing their ability to draw water. Similarly, in 2010, when southwestern China faced a severe drought, many fixed pump stations experienced complete water shortages at their intake points, leaving them unable to deliver supplies. Conversely, in cases where water levels dropped too low, the pumps couldn’t achieve sufficient suction depth, again resulting in a breakdown of water supply.

  5. Convenient management. Equipped with an automatic control system, it offers simple operation and easy installation. There are no underwater components to handle, making maintenance straightforward—and lifting tools are provided for convenient inspection and repair.

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