Flanges and Flange Accessories [49 CFR 192.147]

(A)A. Each flange or flange accessory (other than cast iron) must meet the minimum requirements of ASME/ANSI B16.5(incorporated by reference, see §507) and MSS SP 44. (incorporated by reference, see §507), or the equivalent. [49 CFR 192.147(a)]#

(B)B. Each flange assembly must be able to withstand the maximum pressure at which the pipeline is to be operated and to maintain its physical and chemical properties at any temperature to which it is anticipated that it might be subjected in service. [49 CFR 192.147(b)]#

(C)C. Each flange on a flanged joint in cast iron pipe must conform in dimensions, drilling, face and gasket design to ASME/ANSI B16.1 (incorporated by reference, see §507) and be cast integrally with the pipe, valve, or fitting. [49 CFR 192.147(c)]#

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.#

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 9:223 (April 1983), amended LR 10:515 (July 1984), LR 18:856 (August 1992), LR 20:444 (April 1994), LR 30:1233 (June 2004), LR 44:1037 (June 2018), amended by the Department of Conservation and Energy, Office of Enforcement, LR 51:1832 (November 2025).#