Column pumps are high-performance vertical pumping solutions designed for moving large volumes of water efficiently at low to medium heads. Xylem’s range of submersible and conventional column pumps are widely used in stormwater, wastewater, and raw water intake applications where reliable, high-flow operation is critical.
Installed within a discharge column, these pumps offer a compact footprint, easy installation, and simplified maintenance. Submersible column pumps sit at the base of the column without the need for complex mounting hardware, while traditional designs allow for quick removal of the rotating assembly for service. This makes column pumps a cost-effective and dependable choice for municipal, industrial, and water infrastructure projects.
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Technology
Flygt column pumps
Flygt column pumps are a cost-effective choice for high discharge flows at low to medium discharge heads. The pump features a propeller with a fixed blade angle or a semi-axial impeller with a trim (diameter) that meets the specified duty conditions.
Column pumps are high specific speed pumps, and as such they depend on a well-designed pump sump to deliver on their factory performance. Flygt has the knowledge, tools and experience to help you design a good wet well and a practical and functional pump station.
Why right-sizing matters
Selecting the optimal pump size delivers significant advantages:
Smaller installation footprint – Right-sized pumps require smaller column diameters and reduced pump bay dimensions, lowering construction costs. This is especially critical for space-constrained water attractions and retrofit municipal projects.
Lower energy costs – Pumps operating at their design point achieve peak efficiency. Oversized pumps running off their performance curve waste energy and increase operating costs over the equipment’s lifetime.
Reduced capital investment – Smaller pump, motor, column, and installation requirements translate directly to lower total project cost.
Pump station design services
Our in-house application engineers can provide comprehensive support throughout your project:
Pump selection – Identify the optimal pump model for your specific application requirements
System analysis – Calculate head losses and verify system performance
Sump design – Ensure uniform approach flow to achieve optimum pump performance and maximize equipment life
Hydraulic analysis – Prevent accumulation of sediment and surface scum
Advanced flow modeling (CFD analysis) – Optimize pump station designs and develop effective solutions for unique requirements
Physical scale modeling – Testing for critical applications requiring validation
Wide range of applications
Stormwater and flood control – High-capacity pumping when severe weather threatens communities
Challenge A gas-fired power plant in southern Sweden required a supply of cooling water to be pumped through a long pipe, which is sensitive to water hammer, to heat exchangers that are sensitive to...
Challenge Creating an artificial white water channel for water sports such as kayaking, canoeing and rafting by pumping 3 m3/s (48,000 US gpm) per pump at a height of 7 m (24 ft). Solution The...
Challenge To provide a cost-efficient pump station fed by three independent inlets, resulting in a potential maximum inflow of 7.8 m3/s (123,000 US gpm) combined. Air entrainment into the pumps due...
Challenge A major city in Mexico has three different propeller pump stations to handle combined wastewater and stormwater pumping. For nine months of the year, the stations transport wastewater and...
Challenge Situated on an estuary of a major river, one of the largest cities in China has an average annual rainfall of 1100 mm (43 in). The three-month typhoon season, usually with heavy rains from...
Challenge Placement of a new stormwater pump station in a 10 m x 5 m (32 × 18 ft) area between two roads and a hotel in one mid-western state’s major cities. Close proximity to three rivers, snow...
