It's a common misconception that fluids with different flow rate requirements always need separate pumps. In reality, that's not necessarily the case.
Image Credit: Fluid Metering, Inc.
When working with two fluids that require different flow rates, there are alternative solutions worth considering. In some situations, using a single pump can improve efficiency and reduce costs.
This article explores practical options for handling different fluids with varying flow rates.
Choosing the Right Pump Setup
Some application examples may warrant the use of separate pumps for working with different fluids, but there are other options. For example, a duplex pump featuring two pump heads can be calibrated at different values.
These ‘2-for-1’ pumps feature a single drive motor, despite being able to drive two different pump heads with two different mix ratios. These types of pumps are extremely beneficial to users looking to simplify their operations and save space within the lab environment.
The need for separate pumps or a single pump option depends largely on a specific application's needs, but a duplex pump can often be used to process different fluids at different flow rates.
The Benefits of Using a Single Pump
If your application allows you to meter multiple fluids using a single pump, there are several potential benefits to consider. Here are some of the key advantages:
Simplification
The most significant benefit of using a single pump is the simplification of the electrical system. Two pumps necessitate the use of multiple motor controllers to operate at independent speeds, adding to the system’s complexity in terms of integration. Duplex pumps help to reduce the complexity of the fluidic system.
Space Saving
Using a single pump instead of two saves space within both the lab environment and within the instrument itself. As well as its reduced space requirements, this can help improve reliability, reduce maintenance requirements, and reduce downtime, effectively streamlining overall operations.
Cost Savings
Using a single pump should also reduce its overall cost, especially when leveraging a single duplex pump rather than acquiring multiple units. Despite its versatility, the duplex pump will often cost less to manufacture than two standard pumps.
Disadvantages of Using a Single Pump
Applications requiring flow outputs in multiples of two may not be adequately served by a single pump. For example, increased complexity in the fluidic system can lead to increased system size, increased cost, and additional leak points.
The decision to work with one pump versus two separate pumps should always be based on the requirements of the application in question.
How Fluid Metering Can Help
Fluid Metering, Inc. offers a range of duplex pump options able to accommodate applications where it is beneficial to use a single pump for processing different fluids at different flow rates. Various models with dual shaft or dual head options are available, from stepper base options to the QB series of pumps.
It is advisable to contact Fluid Metering prior to purchasing a pump solution to ensure the best combination of pump head and calibration is provided for the specific application.
It is important to note, however, that while this article primarily discussed the duplex pump, many other products in Fluid Metering's portfolio can be used for the same purpose.
Acknowledgments
Produced from materials originally authored by Dickson Ong from Fluid Metering, Inc.
About Fluid Metering, Inc.
Fluid Metering, Inc. (FMI) is a worldwide leader in life science pumps and dispensers, having pioneered the first valve-less piston pump over 64 years ago. With specialized expertise in fluidics and applications, Fluid Metering, Inc. supports instrument developers in tackling complex fluidic challenges.
Committed to innovation through collaboration, Fluid Metering, Inc. advances health, sustainability, and quality of life. ISO 9001:2015 certified.
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