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  1. MariusLT

    EN 14015 vs API 650 reinf. thk calc difference

    Hello all, Question regarding flush-type clean-out doors. I need to calculate bottom reinforcement plate thickness. Opening dims 800x300 mm. Tank height 6 m. API650 3.7.7.1, table 3-11 states 1/2 inch (12,7 mm). EN14015:2004 Annex O gives formula 7*sqrt(H+3)=21 mm. Why such a difference...

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