5 Ways to Test Seals in Industrial Filters

The 5 major ways to test seal integrity in industrial filters include the press test, edge inspection, light test, DOP test and pressure drop test. Dynamic Filtration Ltd., a major manufacturer of industrial filters, panel filters, pleated air filters, and custom filters in Waterloo, Ontario, explores these 5 tests in detail in this blog.

 

How To Test Seals In Industrial Filters?

 

Press Test

 

This is a simple physical that involves pressing the center of the industrial filter after installation. If there is no movement or rattling upon pressing, then the seal is secure in the filter.

 

Edge Inspection

 

This involves checking all four sides or periphery of the filter to see if there is any gap between the filter and housing. If fingertips can enter this gap, then the seal is not properly secured or damaged.

 

Light Test

 

Use a flashlight to check for any holes or gaps in the industrial filter seal. If the light flashed on one side of the filter is visible on the other side through gaps, then the seal is malfunctioning or broken. 

 

DOP Test

 

Also known as aerosol photometry, this is a more comprehensive test to check for seal integrity in HEPA filters. In this test, an aerosol product is sprayed upstream of the filter. Then, the downstream side of the industrial filter is checked with a photometer. If there is the presence of aerosol particles, then the seal and gasket are compromised. 

 

Pressure Drop Test

 

This method checks the differential air pressure between the inlet and outlet of the filter. Typically, there is a notable drop in pressure, ensuring proper seal integrity and filter functioning. However, if the pressure drop is low, then the seal might be damaged or improperly installed.

 

 

Conclusion

 

To conclude, seal integrity on an industrial filter can be checked by one or a combination of any of these 5 methods of testing.

 

Want to learn more about different types of filters? Reach out to us at Dynamic Filtration Ltd. today. As a leading manufacturer of industrial filters in Waterloo, Ontario, we offer panel filters, pleated air filters, custom filters and specialized filter elements. Contact us at 519-886-0749 today for more details.

 

 

FAQs:

 

What is the importance of testing in industrial filters?

 

Testing is vital in industrial filters as it prevents particulate bypass and ensures safety across different operating conditions.

 

What are some common seal materials used in industrial filters?

 

Common seal materials used in industrial filters include silicone, neoprene, PU foam, and gel seals.