1.1 本规程涵盖了通过压缩无缝铜和铜合金管和配件之间的弹性密封元件来制造永久压接接头的程序。 1.2 本程序适用于加压系统的压接配件，如管道、设施用水、生活用水、真空、压缩空气和气体、供暖、通风和空调、循环乙二醇、制冷、冷凝器和冷冻水以及灭火喷头。 1.3 本程序不适用于电气或电子系统的组装。 1.4 ASME B31.5、ASME B31.9和实践中引用了令人满意的接头制备技术 B828 . 1.5 管子和配件在规定的公差范围内制造，以适应与制造实践相关的尺寸微小变化。 1.6 有多种弹性体密封元件化合物可供选择。 根据应用和制造商的建议选择正确的密封件。 1.7 单位-- 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对国际单位制的数学转换，仅供参考，不被视为标准值。 1.8 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.9 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 5.1 本文所述的技术用于在车间操作或现场生产铜和铜合金管与配件之间的无泄漏压接接头。需要操作员或机械师的技能和知识才能获得令人满意的接头。 5.1.1 请参考制造商的建议，了解现有接头到新接头的最小安装距离以及压接接头之间的距离。

1.1 This practice covers a procedure for making permanent press-connect joints by compressing an elastomeric sealing element between seamless copper and copper alloy tube and fittings. 1.2 This procedure applies to press-connect fittings of pressurized systems such as plumbing, facility water, domestic water, vacuum, compressed air and gases, heating, ventilating and air conditioning, hydronic glycol, refrigeration, condenser and chilled water, and fire suppression sprinkler. 1.3 This procedure does not apply to the assembly of electrical or electronic systems. 1.4 Techniques for satisfactory joint preparation are referenced in ASME B31.5, ASME B31.9, and Practice B828 . 1.5 Tube and fittings are manufactured within defined tolerances to accommodate small variations in dimensions associated with manufacturing practice. 1.6 A variety of elastomeric sealing element compounds are available. Select correct seal based on application and as recommended by the manufacturer. 1.7 Units— The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The techniques described herein are used to produce leak-tight press-connect joints between copper and copper alloy tube and fittings either in shop operations or the field. Operator or mechanic’s skill and knowledge is required to obtain a satisfactory joint. 5.1.1 Refer to manufacturer’s recommendation for minimum installation distance from existing to new joints and distance between press-connect joints.