The instrument air is contaminated.

2017-05-11View Original

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In the PVC industry, the instrument air is contaminated by EDC; I can’t recall the reason at the moment. If any expert knows it, please help explain it.

Reply #22017-05-11

I can’t understand your description. I wonder, could there be a point where the instrument air line is connected to the process air?

Reply #32017-05-12

Dichloroethane? In PVC, dichloroethane is supposed to be just a byproduct, right? How could it be polluted by that exactly?

Reply #42017-05-12

That’s quite luxurious of you. There’s no way the instrument air can get contaminated by this thing, unless you use that instrument air for other purposes, connecting it to pipes carrying high-pressure fluids or to reaction vessels.

Reply #52017-05-12

Instrument air is an independent system; it’s a problem when it gets contaminated!

Reply #62017-05-12

Is the instrument air not being used as process air?

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The instrument air is contaminated.

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