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5. Acceptable forces on flanges
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Standardized pumps
The French standard NF E 44-145 Forces et Moments applicables aux flanges, pompes centrifuges et hélico-centrifuges à axe horizontal (Forces and moments applicable to flanges, centrifugal and helico-centrifugal horizontal-axis pumps) assesses the limiting forces on flanges for 8 major families of single-stage and multistage pumps.
This comprehensive standard covers the case of complex 12-component loading [3 forces (F x , F y , F z ) and 3 moments on each flange].
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General case
This is dealt with either by assigning the pump to one of the 8 standardized families, or by calculating...
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Acceptable forces on flanges