46 C.F.R. § 53.05-3 Materials (modifies HG–401.2).
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(a) Materials for valves must be in accordance with HG–401.2 of the ASME Code except nonmetallic materials may be used only for gaskets and packing.
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PART 53—HEATING BOILERS
Subpart 53.05—Pressure Relieving Devices (Article 4)
§ 53.05-3 Materials (modifies HG–401.2).
