What is an airless, non-atomised film coating valve and how does it affect my conformal coating robot process?

This type of valve design relies on generating sufficient fluid pressure to force the valve through a shaped valve opening to form a leaf-shaped fan pattern.

Conformal Coating Non-atomised airless robotic spraying

Conformal Coating Non-atomised airless robotic spraying

What you get, if several other conditions are near perfect, is a wide fluid stream with a well-defined edge as seen in the picture below.

Conformal Coating applied by a film coating valve

Conformal Coating applied by a film coating valve

To find out more about this and other valves for conformal coating application click Choosing the Right Valve for a Selective Robotic Conformal Coating Application Process

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About Dr Lee Hitchens

Dr Hitchens has been working in the electronics industry and the area of conformal coatings for over 25 years in various areas including sales and technical support. He has also been training people for almost the same amount of time in all areas of conformal coating whether that is materials & equipment selection, process development or troubleshooting to help them solve their particular problem. Recently, he decided that the industry needed a specific place where all of the useful knowledge on conformal coatings could be collated for users to find easily and use in their own production process. So, Nexus was born and he began the Nexus eBook project.

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