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Code of Federal Regulations Title 46. Shipping § 46.154.528 Piping joints:  Flange type

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) A flange must be one of the following types:

(1) Welding neck.

(2) Slip-on.

(3) Socket weld.

(b) If the piping is designed for a temperature between –10° C (14° F) and –55° C (–67° F), the pipe flange may be a:

(1) Slip-on type, if the nominal pipe size is 100 mm (4 in.) or less;

(2) Socket weld, if the nominal pipe size is 50 mm (2 in.) or less;  or

(3) Welding neck.

(c) If the piping is designed for a temperature lower than –55° C (–67° F), the pipe flange must be a welding neck type.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 46. Shipping § 46.154.528 Piping joints:  Flange type - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-46-shipping/cfr-sect-46-154-528/

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