(a) The maximum allowable working pressure of a boiler carrying the ASME Code symbol or of a pressure vessel carrying the ASME or API-ASME symbol shall be determined by the applicable sections of the code under which it was constructed and stamped. Subject to the concurrence of the enforcement authority at the point of installation, the boiler or pressure vessel may be rerated in accordance with the rules of a later edition of the ASME Code and in accordance with the rules of the National Board Inspection Code or API 510, as applicable.
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Terms Used In Alabama Code 25-12-6

  • boiler: shall include fired units for heating or vaporizing liquids other than water where these units are separate from processing systems and are complete within themselves. See Alabama Code 25-12-2
(b) The maximum allowable working pressure of a boiler or pressure vessel which does not carry the ASME or the API-ASME Code symbol shall be computed in accordance with the Inspection Code of the National Board of Boiler and Pressure Vessel Inspectors.
(c) This chapter shall not be construed to prevent the use, the sale, or the reinstallation of a boiler or pressure vessel referred to in this section, provided it has been made to conform to the rules and regulations of the board governing existing installations and has not been found upon inspection to be in an unsafe condition.
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