Code of Federal Regulations Title 46. Shipping § 46.56.25–5 Flanges

Each flange must conform to the design requirements of either the applicable standards of table 56.60–1(b) of this part, or of those of appendix 2 of section VIII of the ASME Boiler and Pressure Vessel Code (incorporated by reference;  see 46 CFR 56.01–2). Plate flanges must meet the requirements of § 56.30–10(b)(5) of this part and the material requirements of § 56.60–1(a) of this part. Flanges may be integral or may be attached to pipe by threading, welding, brazing, or other means within the applicable standards specified in table 56.60–1(b) of this part and the requirements of this subpart. For flange facing gasket combinations other than those specified above, calculations must be submitted indicating that the gaskets will not result in a higher bolt loading or flange moment than for the acceptable configurations.