Inspection port sizes

I am designing an accessory product for air compressors and it would help me if I knew (A) the size and thread of the inspection port and (B) whether this size is standard in the industry.

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Nov 03, 2016
Inspection port sizes
by: Bill

I expect it would depend on the size of the tank. Not all smaller compressor tanks even have an inspection port.

Please update by adding a comment indicating what size of compressor tank you are considering.

Then, we can do a quick search to determine answers to your questions.

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