When to use a vertical turbine pump?

Vertical turbine pumps are centrifugal pumps, also known as the vertical pump, deep well, or line shaft pump. They are built to be fully submerged in water and are designed to move water from underground wells or reservoirs. They are commonly used in water applications, but there is a wide range of these pumps for many industries and applications. Because of its vertical design, it is much more practical than a similar submersible system. This keeps the engine dry and free of potential risks that would come from a submersible pump.

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How do they work?

Vertical turbine pumps are made up of a motor, discharge head, and at least one rotating impeller that is attached to a shaft that directs water into a diffuser casing called a bowl. These pumps work when water enters the pump through a bell-shaped part called the suction bell. It then moves into the first stage impeller, which raises the water's velocity. The water then enters the bowl immediately above the impeller, where this high-velocity energy is converted into high pressure. The bowl directs the fluid into the next impeller, which is located directly above the bowl, and this process continues through all of the stages of the pump. After the water leaves the final diffuser bowl, it passes through a vertical column pipe as it rises the well toward the surface. The elective motor is above ground, connected by a long vertical shaft to impellers at the bottom of the pump. The spinning shaft inside is supported with sleeve bearings mounted inside the column and lubricated by the water passing through. The pump discharge head is located at the surface, and it allows the flow to change direction toward the discharge pipe.

Where is it used best?

Vertical turbine pumps are commonly used in wells that provide irrigation or to provide water supply for municipalities that rely on groundwater rather than surface water. They are primarily used when a submersible pump is not possible because the flow is above the range of turbines, or the motor mounted at the top of the pump is preferred. These are usually multistage pumps with several levels of impellers encased in a bowl assembly and are typically classified as deep well or short set pumps.

What are the advantages of vertical turbine pumps?

Vertical turbine pumps have multiple advantages that can make them easy to use in all kinds of industries. Since the motor sits on the surface, this allows for motor replacement and repair without removing the entire pump assembly. The drive motor choice can be more flexible, including gas and electric options. They can pump from an open body of water like a reservoir, river, or pump intake structure. They can be easily customized and are highly efficient on high-head, low-flow applications.

Our legacy brand Floway® vertical turbine pumps are highly engineered vertical pumps and have a unique level of service and support for the life of your operation. No matter your industry, our dedicated Trillium Flow Technologies' team ensures your success and gives you confidence year after year, project after project. We can assure you of guidance, responsive solutions, and long-term plans that optimize your efficiency and resources.

If you're designing a pump system to manage drinking water, you need to select the right pump for the job. In some cases, this might be a vertical turbine pump. But what exactly is a vertical turbine pump? And how do vertical turbine pumps work? Read on to discover the basics you should know.

What is a vertical turbine pump?

A vertical turbine pump is a specialized centrifugal pump that moves water from deep underground sources like wells or reservoirs. Unlike a submersible pump, which is another type of turbine pump, a vertical turbine pump gets power from a motor that's located above ground and connected with a vertical shaft to impellers underground.

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Vertical turbine pumps are used in situations where submersible pumps can't be used, or where flow is higher than the range of turbines. They're commonly used in wells used in turf or agricultural irrigation, but you'll also find them in municipalities that rely on groundwater instead of surface water. Other applications include plant makeup water and fire water for industrial facilities.

When selecting vertical turbine pumps for your applications, make sure your pumps are appropriately sized for the drinking water demands of the community. If you're moving high volumes of treated water, always choose a high-service pump to keep up with demand.

How do vertical turbine pumps work?

Vertical turbine pumps usually feature an AC electric conduction motor or diesel engine with right angle drive. At the other end of the pump, below ground, there's typically one rotating impeller that directs well water into a bowl, or diffuser casing.

In multi-stage configurations, the vertical turbine pump will have multiple impellers on the same shaft. This creates higher pressure that's required for deeper wells or situations where higher pressure is needed at the ground level.

Vertical turbine pumps engage as water enters the pump through the suction bell, a bell-shaped component at the bottom of the pump. At this stage, the water enters the first impeller, which raises its velocity. Then, the water reaches the diffuser bowl, which converts high-velocity energy into high pressure. The diffuser bowl allows the fluid to flow to the next impeller, then the entire process continues throughout all stages of the pump.

Once the water leaves the final diffuser bowl, it makes its way toward the surface, passing through a long pipe as it travels up the well bore. This part of the pump features a spinning shaft that's supported with sleeve bushings inside the column. The water lubricates the bushings as it flows past, finally reaching the pump discharge head. As the water reaches the surface, the flow can change directions toward the discharge pipe where it finally leaves the pump.

Now that you understand what a vertical turbine pump is and how it works, you'll have a better idea of whether it's the right pump for your water treatment facility. Learn more by contacting Enviro-Line Co., Inc. today. We'll direct you to the right pumps and other components for your specific treatment applications.

Categorised in: Vertical Turbine Pumps

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