How to choose a horizontal or vertical centrifugal pump

The main types of centrifugal pumps

Centrifugal pumps are kinetic pumps which, thanks to the action of centrifugal forces, allow the liquid to first increase its kinetic energy and then transform it into pressure energy. Centrifugal pumps can be used in a wide range of industrial applications, offering high operational efficiency in terms of versatility and performance. The main types of centrifugal pumps include two configurations:

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• Horizontal centrifugal pumps
• Vertical centrifugal pumps

The aim of this article is to clarify the main differences between the two types of centrifugal pumps while highlighting the most appropriate uses and related benefits.

What are horizontal centrifugal pumps?

Horizontal centrifugal pumps are one of the most widely used pump models within industrial applications. The design configuration involves aligning the pump head on the same plane with the pump motor. The positioning of the motor and pump head can be either close coupled (without couplings) or long coupled (with a coupling). The main areas of use include spraying systems (e.g., in the automotive or paint industry) and water purification systems for circulating very dirty liquids with suspended solids.

Application advantages of horizontal centrifugal pumps

Horizontal centrifugal pumps are easier to install and maintain because their design configuration makes them more accessible to the operator. Horizontal pumps can be easily adapted to different suction requirements and are particularly suitable for placement within plants where space is restricted.

What are vertical centrifugal pumps?

This type of pump has a vertical alignment in which the motor is positioned above the pump shaft. Also in this case the coupling between motor and pump head can be close or long where a spacer bracket acts as a support for the motor. The most frequent applications concern fluid transfer systems even with solid parts in suspension, lifting stations or fixed installations where the pump is immersed directly inside a tank.

Application advantages of vertical centrifugal pumps

Vertical centrifugal pumps are designed to lift fluid from an area of high depth. Compared to horizontal models, vertical pumps occupy a smaller footprint and are therefore an excellent solution for installations where the available floor space is limited. Vertical pumps are very well suited to pumping high-pressure fluids even at high temperatures. Vertical pumps use an electric motor, which in some cases may limit their uses.

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Horizontal or vertical: which is the right pump?

Choosing the right pumping technology depends on a very high number of factors. At DEBEM we have a technical sales team that can provide support on the choice of the best pumping technology, be it horizontal or vertical. Do not make a choice if you do not have the right information. We will help you find exactly the right solution.

The Key Difference & Functionality

A vertical centrifugal pump has a vertically oriented shaft. The design of the shaft is radial split and overhang. Before choosing between the two types of pumps, you need to consider the factors such as maintenance, installation space, functionalities, and applications. Vertical centrifugal pumps are apt when you have a limited surface area. They are perfect for liquids with high temperatures and pressure and have a wide range of applications.

The vertical centrifugal pumps get coupled with electric motors. The impeller gets connected over the shaft with the electric motor that rotates at a predefined speed and produces a centrifugal effect. These vertical centrifugal pumps are operated by a direct-drive motor and have high-performance data regarding flow rate. The robust construction of these pumps avoids the use of internal mechanical seals. The mechanical seals are often interchangeable.

The open impeller allows continuous pumping of even dirty liquids or media containing small solids. The construction and design of these pumps make them reliable for guaranteed continuous operation and ensure longevity.

Advantages

• Vertical centrifugal pumps have high chemical and thermal resistance because they are robust in construction.
• They are suitable for continuous operations.
• They are easy to install even without disturbing the piping.
• They are frequently available and interchangeable with inexpensive spare parts.
• They are reliable and have higher applicability even with extremely dirty liquids or media containing small solids.

They are quick and easy to maintain.

Contact us to discuss your requirements of Vertical Chemical Centrifugal Pump. Our experienced sales team can help you identify the options that best suit your needs.