Blending Systems

Proportional Blending System

Blending module feeds one ingredient in proportion to the flow of a master stream
[Full size image]

In fluid processing, the term "blending" refers to the combining of two or more process fluids, in-line, into a single output stream. Usually (but not always) blending is done as a continuous process in closed pipework.

Blending is often contrasted with "batching" which is the accumulation of controlled quantities of one or more process materials into one or more vessels.

Go to ChemIndustrial batching systems to learn more about our batching system capabilities.

ChemIndustrial builds complete skid-mounted blending systems to satisfy a wide range of customer requirements. Each system uses a customized combination of ChemIndustrial's innovative liquid handling methods to achieve the intended blending purpose.

Some of these innovative techniques use centrifugal pumps to perform volumetric metering tasks that would otherwise require piston or diaphragm pumps. The high reliability and low cost of centrifugal pump-based flow metering systems often make these a better choice than traditional positive displacement pumps for the blending systems we design. But we readily use positive displacement pumps where they are clearly the most appropriate devices for a particular blending task.

Simple blending systems

Some ChemIndustrial blending systems use simple mechanical devices such as venturis, self-acting pressure controllers and in-line flow control devices. ChemIndustrial can often satisfy a customer's blending requirements with systems like this without needing electronic controls. Some of these systems take advantage of existing flow sources to avoid the need to install any prime mover within the blending system.

[Back to top]

Controller-based blending systems

In situations where customer performance requirements are incompatible with the simple blending systems described above, we incorporate pumps, valves and in-line mixing elements as well as instrumentation items like flowmeters and flow controllers.

[Back to top]


ChemIndustrial builds blending systems as skid-mounted modules. The modules for relatively small blending systems are built in stainless steel frames that look similar to portable generator frames.

Typically, one blending module handles 1 or 2 streams and includes sensors, pumps, valves and control elements. If the system has more blend streams, we add more modules. This modular approach allows easy scale-up and retrofitting of blending systems to any level of size and complexity.

Usually, all modules are installed together as a central blending station. Alternatively, our modular approach allows blending skids to be distributed throughout the customer's plant.

If the system is controller-based, ChemIndustrial provides an intelligent blend controller on each skidded module. Multiple blend modules are coordinated via a control network that unifies all of the individual blend controllers into a single system. Monitoring nodes can be added to the network for control room or other remote service.

[Back to top]

Other blending system elements

ChemIndustrial also configures and supplies the additional process parts and pieces needed for a complete blending system. We supply ingredient tanks, mix tanks, surge tanks and finished product vessels. We also design and build ingredient valve manifolds for the inlet side of blending systems and distribution manifolds for the outlet side.

[Back to top]


Over the years we have tackled some unusual blending system requirements. Some of these:

We have designed any number of configurations to satisfy the multitude of special blending problems presented by customers for industrial, lab and agricultural projects.

[Back to top]

Working with ChemIndustrial

When competent specialist suppliers such as ChemIndustrial are available, you can avoid the cost and time needed to write detailed equipment and control specifications. Instead, you can allow us to adapt our technology to your specific situation. This reduces your project costs and decreases the time needed to quote and accomplish your projects. Since most experts agree that there is little evidence that better systems result from the customer effort spent preparing detailed specs, it makes sense for you to leverage ChemIndustrial's blending capabilities.

[Back to top]

Blending system questionnaire

ChemIndustrial works quickest, cheapest and best when it is able to use its own proprietary blending technology and equipment to satisfy a functional description of a customer's required blending operation. Use the ChemIndustrial blending system questionnaire below to provide us with a functional description of your blending requirements.

PDF Icon Blending system questionnaire [.pdf, 169kb]

[Back to top]

ChemIndustrial Systems, Inc. ChemIndustrial Systems, Inc. Home Products Services Literature Theory Classifieds Employment Contact CSI ChemIndustrial Systems, Inc. ChemIndustrial Systems, Inc. ChemIndustrial Fertigation/Chemigation Hydroclone ChemWand® FertigationDirect