May Class A and B liquid media be used in equipment or pipelines with plastic lining? ? ?
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1. May Class A and B liquid media be used in equipment or pipelines with plastic lining? ? ? 2. May non-metallic equipment or pipelines be used for Class A and Class B liquid media? ? ? Is there any legal basis for this? ?
Check the relevant requirements of the construction regulations and petrochemical regulations
Why not? The selection of piping materials is generally based on their corrosion resistance; lining the pipes with plastic serves primarily to prevent corrosion and to protect pipes exposed to the outdoors from aging. The original poster can check out the Chemical Engineering Design Manual and the Piping Design Manual; they provide detailed explanations regarding piping materials.