2010 ASME Boiler and Pressure Vessel Code BPVC Section I - Rules for Construction of Power Boilers

2010 ASME Boiler and Pressure Vessel Code BPVC Section I - Rules for Construction of Power Boilers provides requirements for all methods of construction of power, electric, and miniature boilers; high temperature water boilers, heat recovery steam generators, and certain fired pressure vessels to be used in stationary service; and power boilers used in locomotive, portable, and traction service. Rules pertaining to use of the V, A, M, PP, S and E Code symbol stamps are also included. The rules are applicable to boilers in which steam or other vapor is generated at a pressures exceeding 15 psig, and high temperature water boilers intended for operation at pressures exceeding 160 psig and/or temperatures exceeding 250 degree F. Superheaters, economizers, and other pressure parts connected directly to the boiler without intervening valves are considered as part of the scope of Section I.

Summary of changes:

• Added heat recovery steam generators to the list of devices covered.
• Added Mandatory Appendix III to provide for compliance with revised Conformity Assessment Policy.
• Revised Preamble to include isolable economizers and isolable superheaters.
• Revised PG-16.1 to enable use of alternative design methods when details of design are not given in the Code.
• Added PFT-52 Fusible Plugs.
• Revisions to permit inclusion of clad thickness in the calculated strength of boiler tubes.
• Added PG-5.6 to provide guidance on the necessary actions, if during any phase of construction or erection, a component is heated to a temperature greater than 1470F (800C).
• Added of Paragraph PG-26 and Table PG-26 to impose Weld Joint Strength Reduction Factors on certain welds, primarily longitudinal and spiral, designed for service in the creep regime.

BPVC-I-2010