Materials for valves must be in accordance with HG-401.2 of section IV of the ASME Boiler and Pressure Vessel Code (incorporated by reference; see 46 CFR 53.01-1) except that nonmetallic materials may be used only for gaskets and packing.

[USCG-2003-16630, 73 FR 65164, Oct. 31, 2008]


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