自1922年以来，ASME一直在定义管道安全。ASME B31。1规定了发电站、工业和机构工厂、地热供暖系统、中央和区域供暖和冷却系统中常见的管道系统的设计、材料、制造、安装、测试、检查、操作和维护的最低要求。它还包括动力锅炉和高温高压水锅炉的锅炉外部管道，其中蒸汽或蒸汽的产生压力超过15 psig；压力超过160 psig和/或温度超过250华氏度时会产生高温水。本修订版的主要变化包括:管道规范管辖范围的新数字和更新数字金属波纹管膨胀节的新强制性附录使用替代超声波验收标准的新强制性附录参考ASME CA-1，符合性评估要求SASME B31。 1是ASME要求最高的规范之一，被世界各地的司法管辖区广泛采用。它在ASME锅炉及压力容器规范第一节中有重要引用。本规范是ASME B31的配套规范。3工艺管道规范以及ASME B31系列中的其他规范。总之，它们仍然是任何从事管道工作的人必不可少的参考资料。 适用于管道系统的制造商、设计师、运营商和所有者，包括但不限于蒸汽、水、石油、天然气和空气服务，以及所有潜在的管理实体。

ASME has been defining piping safety since 1922.ASME B31.1 prescribes minimum requirements for the design, materials, fabrication, erection, test, inspection, operation, and maintenance of piping systems typically found in electric power generating stations, industrial and institutional plants, geothermal heating systems, and central and district heating and cooling systems.It also covers boiler-external piping for power boilers and high-temperature, high pressure water boilers in which steam or vapor is generated at a pressure of more than 15 psig; and high temperature water is generated at pressures exceeding 160 psig and/or temperatures exceeding 250 degrees F.Key changes to this revision include:New and updated figures for Code Jurisdictional Limits on PipingNew Mandatory Appendix on Metallic Bellows Expansion JointsNew Mandatory Appendix on Use of Alternative Ultrasonic Acceptance CriteriaReference to ASME CA-1, Conformity Assessment RequirementsASME B31.1 is one of ASME's most requested codes, widely adopted by jurisdictions worldwide. It is prominently referenced in ASME's Boiler and Pressure Vessel Code, Section I.This Code serves as a companion to ASME's B31.3 Code on Process Piping as well as to the other codes in ASME's B31 series. Together, they remain essential references for anyone engaged with piping. Intended for manufacturers, designers, operators and owners of piping systems including, but not limited to, steam, water, oil, gas, and air services, plus all potential governing entities.