End suction pumps are a common type of centrifugal pump that is used in a variety of industrial and municipal applications.

1. End Suction Pump Selection and Sizing: A
Guide for Engineers
End suction pumps are a common type of centrifugal pump that is used in a variety of industrial and municipal
applications. These pumps are known for their simplicity, reliability, and efficiency, making them a popular choice
for pumping liquids such as water, chemicals, and other fluids. However, selecting and sizing the appropriate end

2. suction pump for a specific application can be a complex process, requiring careful consideration of various
factors.
In this article, we will provide a guide for engineers on end suction pump selection and sizing. We will cover the
key considerations that should be taken into account when choosing an end suction pump, as well as the tools
and techniques that can be used to accurately size a pump for a specific application. By following this guide,
engineers can ensure that they select and size end suction pumps that are optimized for their specific needs and
requirements.
Key considerations in end suction pump selection
There are several key considerations that should be taken into account when selecting an end suction pump for
a specific application. These considerations will help to ensure that the pump is properly sized and optimized for
the specific requirements of the system in which it will be used. Some of the key considerations in end suction
pump selection include:
● Flow rate and head requirements: The flow rate and head requirements of the pumping system will help to
determine the size and type of end suction pump that is needed. It is important to accurately measure the
flow rate and head requirements in order to select a pump that can handle the volume and pressure
demands of the system.
● Pumping medium and temperature: The characteristics of the fluid being pumped, including its viscosity,
density, and temperature, will also influence the selection of an end suction pump. It is important to

3. consider the specific properties of the fluid in order to select a pump that is compatible with the medium
and can operate at the required temperature range.
● System pressure and suction conditions: The system pressure and suction conditions will also impact the
selection of an end suction pump. It is important to consider the maximum and minimum pressure and
suction conditions that the pump will be subjected to in order to ensure that it is properly sized and capable
of handling these conditions.
● NPSH (Net Positive Suction Head) requirements: The NPSH requirements of a pumping system are an
important consideration when selecting an end suction pump. The NPSH is the amount of pressure
required at the pump suction to prevent cavitation, which can cause damage to the pump and reduce its
efficiency.
● Other factors: Other factors that may influence the selection of an end suction pump include the type of
pump (single-stage or multi-stage), the materials of construction, and the available space for the pump. It
is important to consider all of these factors in order to select a pump that is suitable for the specific
requirements of the application.
Also Read: The Difference Between End-Suction Pump and Split Case Pump

4. Tools and techniques for end suction pump sizing
Here are a few best practices for end suction pump selection and sizing:

5. ● Accurate data and measurements: Proper pump selection and sizing rely on accurate data and
measurements. It is important to carefully measure and record the flow rate, head requirements, and other
key parameters of the pumping system in order to select and size the pump appropriately.
● Use of manufacturers' pump curves and other resources: Many pump manufacturers provide detailed pump
curves and other resources that can help with pump selection and sizing. Engineers should take advantage
of these resources to ensure that they are selecting and sizing pumps correctly.
● Consultation with pump experts and suppliers: Engineers should consider consulting with pump experts and
suppliers when selecting and sizing end suction pumps. These individuals can provide valuable guidance
and recommendations based on their expertise and experience.
● Consider the long-term needs of the system: It is important to consider the long-term needs of the system
when selecting and sizing an end suction pump. For example, if the system is expected to experience
changes in flow rate or head requirements over time, engineers should select a pump that has the flexibility
to handle these changes.
● Follow manufacturer's recommendations: Engineers should always follow the manufacturer's
recommendations for pump selection and sizing. These recommendations are based on the manufacturer's
extensive knowledge and experience and can help to ensure that the pump is properly sized and optimized
for the specific application.