Axial Flow Pumps

The operating principle of axial flow pumps 

Axial flow pumps are a type of centrifugal pump that operates using the principle of axial flow. These pumps are designed to create fluid flow in a parallel direction to the impeller axis, with the impeller blades producing a lift force that moves the fluid along the impeller's length. 

Axial flow pumps can achieve high flow rates at relatively low head pressures, making them suitable for a variety of applications. The impeller blades of an axial flow pump are typically curved and set at an angle to the impeller axis, which generates a force that drives the fluid in a parallel direction to the impeller axis. As the impeller rotates, the fluid enters through the inlet, and is accelerated by the impeller blades. 

The velocity of the fluid is increased, and it flows through the vanes, where it is pushed out in the same direction as the impeller's rotation. The axial flow pump's casing is designed to direct the flow of fluid and convert some of the kinetic energy of the fluid into pressure energy, which increases the pressure of the fluid as it exits the pump. 

Axial flow pumps typically have a flow rate ranging from 2 m3 to 2000 m3 liters per minute and can achieve heads of over 15 meters. These pumps are commonly used in applications such as cooling water circulation, flood control, and water treatment plants. For example, a 1300mm axial flow pump with a flow rate of 2 000 000 liters per minute and a head of more than 4 and a half meters can be used to provide cooling water for a large industrial process. 

Advantages and features of axial flow pumps 

Axial flow pumps are widely used in various industries due to their numerous advantages and benefits. Some of these advantages include: 

• High flow rate: Axial flow pumps are designed to move large volumes of fluid with a low head requirement. This makes them ideal for applications that require high flow rates, such as cooling systems, irrigation, and flood control. 
• Energy-efficient: Axial flow pumps are designed to be highly energy-efficient. Their impellers are designed to move fluid in a straight line, reducing turbulence and minimizing energy losses. This makes them more efficient than other types of pumps that create more turbulence. 
• Low maintenance: Axial flow pumps have few moving parts, which makes them easy to maintain. They also have a long lifespan, reducing the need for frequent replacement and maintenance. 
• Compact size: Axial flow pumps are relatively small compared to other types of pumps, making them ideal for applications where space is limited. 
• Versatile: Axial flow pumps can handle a wide range of fluids, including water, oil, and chemicals. This makes them ideal for use in various industries, including agriculture, mining, and oil and gas. 

Furthermore, axial flow pumps have a low NPSH (Net Positive Suction Head) requirement, which means that they can be used in applications where there is limited suction head available. 

Industrial and Commercial Applications of Axial Flow Pumps 

Axial flow pumps are widely used in various industries where large volumes of fluid need to be pumped at relatively low pressures. Some of the industries and applications that use axial flow pumps are: 

• Irrigation: Axial flow pumps are commonly used in irrigation systems to pump water from lakes, rivers, or wells into large irrigation canals. 
• Cooling systems: Axial flow pumps are used in cooling systems for power plants, chemical plants, and other industrial facilities. They are used to pump large volumes of water or other cooling fluids through heat exchangers to remove heat generated by various processes. 
• Marine applications: Axial flow pumps are used in the marine industry to pump seawater for various purposes such as cooling engines, ballast systems, and firefighting. 
• Flood control: Axial flow pumps are used in flood control systems to pump large volumes of water out of low-lying areas. 
• Chemical processing: Axial flow pumps are used in chemical processing plants to pump corrosive and abrasive fluids such as acids, alkalis, and slurries. 

Important considerations when selecting axial flow pumps 

To ensure the optimal performance and suitability of axial flow pumps for industrial and commercial applications, it's crucial to consider several factors. One of the key factors is the required flow rate, as it determines the size of the pump needed. Another important factor to consider is the required head pressure, which indicates the force required to move the fluid through the system. The properties of the fluid, such as its viscosity, temperature, and corrosiveness, must also be considered when selecting the appropriate pump. Additionally, the pump's efficiency is essential since it affects the energy consumption and operating costs of the system. Finally, it's crucial to consider the operating conditions, including the environment and ambient temperature, to ensure that the pump can operate efficiently and reliably. 

Why buy axial flow pumps from AxFlow? 

AxFlow provides axial flow pumps that cater to an extensive variety of industries and applications. Exclusive to AxFlow, you will be provided with personalized recommendations from highly experienced process engineers, and access to the most prominent process technology manufacturers that are independent of the manufacturer. If you require assistance in selecting the appropriate pumps that satisfy your requirements, feel free to contact AxFlow without any delay. AxFlows engineers and specialists can help with the selection process, specifications, installation, and maintenance of your fluid handling equipment.