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InterviewSolution
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What Kind Of “air” (protective Gas) Is Required For A Purge/pressurization System Located In A Hazardous Environment? |
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Answer» Air of normal instrument QUALITY, nitrogen, or other non-flammable GAS is permitted as a protective gas. All protective gas is to be free of contaminants or foreign matter and SHALL contain no more that trace AMOUNTS of flammable VAPOR or gas. (This is per the NFPA 496 specification.) Air of normal instrument quality, nitrogen, or other non-flammable gas is permitted as a protective gas. All protective gas is to be free of contaminants or foreign matter and shall contain no more that trace amounts of flammable vapor or gas. (This is per the NFPA 496 specification.) |
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