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[2026 Flange Standards] Key differences between European PN-series flanges and American Class-series flanges

2026-01-04View Original

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In the design and selection of piping systems, the European PN series of flanges and the American Class series of flanges are the two main standard systems. There are significant differences between them in terms of key parameters, applicable scenarios, and design principles, which directly affect the safety and cost-effectiveness of the system.

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