ASME PCC-2提供了ASME压力技术规范和标准范围内的设备、管道、管道和相关辅助设备投入使用后的维修方法。这些修复方法包括相关的设计、制造、检查和测试实践，可能是临时性的，也可能是永久性的，具体取决于具体情况。本标准中提供的方法适用于根据适当检查和缺陷评估认为有必要进行维修时的部件维修。这些检查和缺陷评估方法未包含在本文件中，但包含在其他帖子中- 建筑规范和标准。仅提供技术程序和信息；行政或政策要求不在本标准的范围内。本修订版的主要变化包括关于泄漏水系统密封焊接的新补充条款；非金属复合材料修复系统的鉴定，以及第1部分——范围、组织和意图的更新；第206条:管道用全环钢筋套管；第207条:带加强塞焊的角焊补片；第211条:焊缝堆焊、堆焊和熔覆层修复； 关于非金属复合材料修复系统:高风险应用的第401条；关于非金属复合材料修复系统的第402条:低风险应用；关于管道和设备的压力和气密性测试的第501条；以及第503条关于焊接修补局部压力或气密性试验的试验装置。

ASME PCC-2provides methods for repair of equipment, piping, pipelines and associated ancillary equipment within the scope of ASME Pressure Technology Codes and Standards after it has been placed in service. These repair methods include relevant design, fabrication, examination, and testing practices and may be temporary or permanent, depending on the circumstances. The methods provided in this Standard address the repair of components when repair is deemed necessary based on appropriate inspection and flaw assessment. These inspection and flaw evaluation methods are not covered in this document, but are covered in other post-construction codes and standards. Only technical procedures and information are provided; administrative or policy requirements are outside of the scope of this Standard.Key changesto this revision include new supplemental articles on seal welding of leaking water systems; qualification of nonmetallic composite repair systems, and updates to Part 1 – Scope, Organization and Intent; Article 206 on Full Encirclement Steel Reinforcing Sleeves for Piping; Article 207 on Fillet Welded Patches With Reinforcing Plug Welds; Article 211 on Weld Buildup, Weld Overlay, and Clad Restoration; Article 401 on Nonmetallic Composite Repair Systems: High Risk Applications; Article 402 on Nonmetallic Composite Repair Systems: Low-Risk Applications; Article 501 on Pressure and Tightness Testing of Piping and Equipment; and Article 503 on Test Devices for Localized Pressure or Tightness Testing of Welded Repairs.