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May convoluted pipe flanges be substituted into systems controlled by ANSI piping codes?

April 26, 2017ANSI controlled convoluted flanges pipe Piping substituted SYSTEMS

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May convoluted pipe flanges be substituted into systems controlled by ANSI piping codes?

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Yes. ANSI piping codes allow national pipe flange standards such as ANSI B16.5, B16.47, B16.1, etc. to allow for design and usage of non-standardized pipe flanges by using the input criteria for pipe flange design per the Pressure Vessel Code, Section VIII, Div. 1, Appendix 2. However, should the shape of a flange look like IPP s convoluted design, then the offered calculation formulae in Appendix 2 are not applicable. Paragraph UG 101 of the P & V Code, Sec.VIII, Div.1, allows for additional means of qualifying a unique pipe flange for code controlled piping systems.