(a) The rules for openings and compensation must be as indicated in PG-32 through PG-55 of Section I of the ASME BPVC (incorporated by reference; see § 52.01-1) except as noted otherwise in this section.
(b) (Modifies PG-39.) Pipe and nozzle necks must be attached to vessel walls as indicated in PG-39 of Section I of the ASME BPVC except that threaded connections must not be used under any of the following conditions:
(c) (Modifies PG-42.) Butt-welding flanges and fittings must be used when full radiography is required by § 56.95-10 of this subchapter.
[CGD 81-79, 50 FR 9432, Mar. 8, 1985, as amended by USCG-2003-16630, 73 FR 65161, Oct. 31, 2008]
authority: 46 U.S.C. 3306,
3307,
3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3
source: CGFR 68-82, 33 FR 18815, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50095, June 12, 2024, unless otherwise noted.
cite as: 46 CFR 52.01-100