Products and Solutions


Separation Dynamics makes water filtration systems that help manufacturers and MRO facilities clean up the water used to inspect parts with fluorescent dyes. The filtered water is clean enough to be reused or safely discharged into the sewer.  

Non-Destructive Testing (NDT) - Fluorescent Penetrant Inspection (FPI) - Non-Destructive Inspection (NDI)

Inspect parts with less wastewater

Inspecting parts with fluorescent dyes can be a unique challenge for automotive and aerospace manufacturers and MRO facilities. The wastewater from the FPI process can be particularly difficult to manage due to emulsified oils and bright fluorescent dyes. The unique chemicals are hard to handle with ordinary wastewater treatment methods. Suffice to say, these aren’t substances to be poured down a drain without special attention.

Fortunately, Separation Dynamics builds state-of-the-art water filtration systems that are designed specifically for the fluorescent penetrant inspection (FPI) process. Our unique EXTRAN™ ultrafiltration technology allows our customers to effectively remove contamination, so the clean water can be reused in the same inspection process or safely discharged into the sewer. The end result is a cleaner, more sustainable and efficient process. Here's how it works:


Evaluate your inspection process

We thoroughly evaluate your current FPI process to understand your wastewater and your goals for improvement. We then specify the best technology and system design to substantially reduce your waste. We deliver a proposal that breaks down your investment, the operating costs, and how much you can benefit over time.

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FPI process evaluation
Build and prepare EXTRAN system


We build your system and prepare you for installation

We guide you through the implementation of your EXTRAN™ water filtration system. These packaged systems are easy to install and integrate with your inspection process. We provide on-site start-up assistance and training to help you seamlessly bring your system online.

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Enjoy peace of mind with a more efficient and sustainable FPI process

Once your new system has been commissioned, it will be very simple to operate and maintain. We continue to provide training, maintenance, and support to help ensure your investment pays off.

A more sustainable NDT/FPI process

With Separation dynamics, you will:

  • Avoid the high cost of generating so much wastewater

  • Avoid the risk of an Environmental Incident with highly visible waste

  • Avoid throwing out your natural resources and meet your company's water reuse goals 

  • Rest easy now that you have an efficient way to handle your FPI waste

Successful fluorescent penetrant inspection

Find out how you can improve fluorescent penetrant inspection and cut your waste

Start your journey to more efficient part inspections. Get a free evaluation of your inspection process and discover how you can benefit from the best practices and state-of-the-art technology to reduce your wastewater. 



“Separation Dynamics’ closed loop recycle systems for FPI are in our facility and working great. No drain required. Water quality better than tap water and low maintenance costs.”

Process engineer at a major aircraft engine maintenance, repair and overhaul (MRO) facility