ASME PCC-2-2022 PDF

Full title and description

ASME PCC-2-2022 — Repair of Pressure Equipment and Piping. This ASME Standard provides methods, acceptance criteria, and guidance for the repair of pressure-retaining equipment, piping, pipelines and associated ancillary components after they have been placed in service. The Standard covers design, fabrication, welding and nonwelding repair techniques, qualification, examination, and testing practices for both temporary and permanent repairs within the scope of ASME Pressure Technology Codes and Standards.

Abstract

ASME PCC-2-2022 consolidates recommended practices for in-service repair of pressure equipment and piping. It defines repair procedures and requirements for welded and mechanical repairs, nonmetallic composite repair systems, sealing and leak-repair methods, pressure and tightness testing, and associated examination and qualification processes. The 2022 edition updates and expands articles for composite repairs, sleeve repairs, weld buildup/overlay, localized testing devices, and other repair techniques to reflect current industry practice and to provide prescriptive, implementable repair methods for owners, repair organizations, and inspectors.

General information

• Status: Active (current edition).
• Publication date: September 2, 2022.
• Publisher: American Society of Mechanical Engineers (ASME).
• ICS / categories: Pressure equipment and piping (ICS classifications covering pressure vessels, piping and pipeline components — e.g., ICS 23.020 / 23.040 area).
• Edition / version: ASME PCC-2:2022 (revision of PCC-2:2018).
• Number of pages: ~326 pages (typical print/PDF publication length).

Scope

The Standard applies to repairs performed on equipment and piping that fall within the ASME Pressure Technology Codes and Standards after initial construction and commissioning. It covers methods for assessment-based selection of repair procedures, qualification and documentation of repair processes, welding and nonwelding repair techniques, mechanical reinforcement methods, nonmetallic and bonded repairs, and associated non-destructive examination (NDE) and pressure/tightness testing. The Standard does not provide the inspection or flaw evaluation procedures used to determine that a repair is necessary (those are addressed elsewhere), but focuses on the technical repair actions, acceptance criteria, and testing required to return components to safe service.

Key topics and requirements

• Welded repair methods including weld buildup, weld overlay, and butt-welded insert plates.
• Full-encirclement steel reinforcing sleeves and fillet-welded patch repairs with plug weld reinforcement.
• Repair qualification and procedure specification for nonmetallic composite repair systems (high- and low-risk applications).
• Seal-welding practices for threaded and leaking connections and guidance on welded lip/weld-ring seals.
• Mechanical repair options and design considerations for retaining or restoring pressure boundary integrity.
• Non-destructive examination (VT, PT, UT, MT) acceptance criteria for repaired areas and inspector qualification notes.
• Pressure and tightness testing requirements and recommended test devices for localized testing of welded repairs.
• Requirements for material compatibility, welding procedures, post-repair processing (heat treatment, machining), and documentation.
• Guidance on temporary versus permanent repairs, including limits and conditions for return-to-service.

Typical use and users

ASME PCC-2-2022 is used by plant owners/operators, maintenance and inspection engineers, welding and repair contractors, NDE personnel, piping and pressure-vessel designers, regulatory compliance staff, and engineering firms tasked with in-service repair and life-extension work. Typical applications include emergency and planned repairs on process plant piping, pressure vessels, heat exchangers, pipeline segments, and ancillary pressure-retaining components across petrochemical, power generation, refining, oil & gas, and industrial facilities.

Related standards

Commonly referenced or complementary standards include ASME PCC-1 (Pressure Boundary Bolted Flange Joint Assembly), ASME Boiler & Pressure Vessel Code (relevant sections such as Section V for NDE and Section IX for welding qualifications), ASME B31 series (piping codes such as B31.3/B31.1), API inspection and repair documents (e.g., API 570/653 where applicable), and relevant ASTM, ISO, and industry guidance for materials, composite repair qualification, and testing methods.

Keywords

repair; pressure equipment; piping; in-service repair; welded repair; composite repair; reinforcing sleeve; weld overlay; seal weld; leak testing; tightness test; NDE; welding procedure qualification; ASME PCC-2; pressure boundary.

FAQ

Q: What is this standard?

A: ASME PCC-2-2022 is the ASME Standard titled "Repair of Pressure Equipment and Piping" that provides methods, requirements, and guidance for performing in-service repairs to pressure-retaining equipment and piping.

Q: What does it cover?

A: It covers welded and mechanical repairs, nonmetallic composite repairs, qualification of repair methods, examination and testing requirements (including localized pressure/tightness testing), acceptance criteria for repaired components, and documentation practices for returning equipment to service.

Q: Who typically uses it?

A: Plant owners, maintenance and inspection engineers, welding and repair contractors, NDE technicians, piping/vessel designers, and regulators use the Standard when planning, executing, or accepting in-service repairs.

Q: Is it current or superseded?

A: The 2022 edition is the current active edition (superseding PCC-2:2018). Users should confirm the latest status through ASME or their standards provider for any amendments or reaffirmations.

Q: Is it part of a series?

A: Yes. PCC-2 is part of the ASME post-construction/pressure-technology family of documents and is commonly used alongside PCC-1 and other ASME and API codes and standards addressing piping, pressure vessels, welding, inspection, and testing.

Q: What are the key keywords?

A: Repair, pressure equipment, piping, welded repair, composite repair, reinforcement sleeve, leak testing, NDE, welding qualification, ASME PCC-2.