ASME BPVC 2025 Section I PDF

Full title and description

ASME BPVC Section I — Rules for Construction of Power Boilers (2025 Edition). This Section of the ASME Boiler and Pressure Vessel Code contains mandatory requirements, construction rules, certification mark usage, and equipment-specific provisions for power boilers, high‑temperature water boilers, heat‑recovery steam generators (HRSG), miniature and electric boilers, and selected fired pressure vessels.

Abstract

The 2025 edition of ASME BPVC Section I provides updated technical rules and safety requirements used worldwide for the design, fabrication, inspection, testing, and certification of power‑boiler equipment and directly connected pressure parts. It includes requirements for materials, welding and qualification references, nondestructive examination acceptance, pressure‑relieving devices, stamping and ASME product certification marks, and permitted code cases and alternatives. The edition is published by ASME and is the active (current) Section I edition for BPVC users.

General information

• Status: Current / Active (2025 edition in effect as the most recent Section I).
• Publication date: July 1, 2025 (2025 edition).
• Publisher: ASME (American Society of Mechanical Engineers).
• ICS / categories: 27.060 — Burners. Boilers (Energy and heat transfer engineering).
• Edition / version: 2025 Edition (ASME BPVC Section I — BPVC.I-2025).
• Number of pages: 453 pages (printed/PDF product listings show 453 pages).

Scope

Section I establishes rules governing the construction of power boilers and related pressure parts: stationary, locomotive, portable and traction power boilers; electric and miniature boilers; high‑temperature water boilers; heat recovery steam generators (HRSG); certain fired pressure vessels used in stationary service; and pressure parts such as superheaters and economizers that are connected directly to the boiler. It also sets out the application and use of ASME product certification marks and designator letters (V, A, M, PP, S, E) where applicable.

Key topics and requirements

• Design and construction rules for power and high‑temperature water boilers.
• Material specifications and material selection guidance (with references to BPVC Section II).
• Welding, brazing and qualification requirements (references to Section IX for procedures and personnel qualifications).
• Nondestructive examination (NDE) methods and acceptance criteria (coordination with Section V where applicable).
• Requirements for pressure‑relieving devices, safety valves, and overpressure protection systems.
• Inspection, testing, hydrostatic and pneumatic test procedures, and documentation/stamping requirements.
• Application and use of ASME product certification marks and designator symbols; rules for mark application and certification compliance.
• Incorporation and use of approved Code Cases and permitted alternatives to Code rules.
• Special provisions for HRSGs, superheaters, economizers, miniature and electric boilers, and certain fired vessels included within Section I scope.

Typical use and users

Primary users include boiler and pressure‑parts designers and engineers, fabricators and manufacturers of boilers and HRSGs, welding and NDE professionals, quality and compliance staff, plant operators and maintenance personnel, certification bodies and inspectors, and regulatory authorities that adopt or reference ASME BPVC rules for permitting and safety compliance.

Related standards

Commonly used companion and cross‑referenced documents include other BPVC sections (notably Section II — Materials; Section V — Nondestructive Examination; Section IX — Welding Qualifications; Section IV — Heating Boilers; Section VIII — Pressure Vessels), ASME B31.1 Power Piping (for boiler external piping), and applicable Code Cases and national/local regulations. These related standards supply material specs, NDE details, welding qualification procedures, and piping rules referenced by Section I.

Keywords

ASME BPVC, BPVC.I, Section I, power boilers, HRSG, high‑temperature water boilers, boiler construction, ASME certification mark, boiler inspection, welding qualification, nondestructive examination, safety valves, code cases, 2025 edition.

FAQ

Q: What is this standard?

A: ASME BPVC Section I (BPVC.I-2025) is the ASME Boiler and Pressure Vessel Code section titled "Rules for Construction of Power Boilers" — the 2025 edition published by ASME. It is the authoritative code for power‑boiler construction and related pressure parts.

Q: What does it cover?

A: It covers requirements for design, materials, fabrication, welding, examination, testing, inspection, pressure‑relief devices, stamping and product certification mark use for power boilers and certain fired pressure vessels, plus related parts such as superheaters and economizers; it also notes applicable Code Cases and cross‑references other BPVC sections for materials, NDE and welding qualifications.

Q: Who typically uses it?

A: Boiler designers and manufacturers, fabricators, welders and welding supervisors, NDE technicians and inspectors, plant maintenance and operations staff, certification bodies, and authorities having jurisdiction (AHJs) that enforce boiler safety and installation codes.

Q: Is it current or superseded?

A: The 2025 edition is the current active edition (it supersedes the 2023 edition). Users should confirm any later errata, addenda or amendments issued after publication when applying the code. (Status and edition details shown in ASME product listings and standards distributors.)

Q: Is it part of a series?

A: Yes — Section I is one part of the ASME Boiler and Pressure Vessel Code (BPVC), a multi‑section code (Sections I–XII and Code Cases) that collectively covers boilers, pressure vessels, materials, examinations, welding, and related topics. Section I specifically addresses power boilers.

Q: What are the key keywords?

A: Power boilers, boiler construction, ASME BPVC, HRSG, safety valves, ASME certification mark, NDE, welding qualifications, code cases, BPVC.I-2025.