1.1 本规范涵盖了与交联聚乙烯（PEX）塑料管一起使用的使用金属压缩套管的冷膨胀管件 3. / 8. -英寸。， 1. / 2. -英寸。， 5. / 8. -英寸。， 3. / 4. -英寸。，1英寸。，1. 1. / 4. -英寸。，1. 1. / 2. -英寸。，和2 in.标称直径，符合规范要求 第876页 或 第3253页 ，并用于高温聚乙烯（PE-RT）管道 3. / 8. , 1. / 2. , 5. / 8. , 3. / 4. , 1, 1- 1. / 4. ，公称直径符合规范要求 769年 ，从而在装配装配之前使管道冷膨胀。本规范涵盖的组件旨在用于住宅和商业、冷热、饮用水分配系统或其他应用，如市政供水管线、建筑供水管线、辐射板加热系统、循环底板加热系统、融雪和融冰系统、，地热地下管道系统和建筑服务管道，在100 psi（690 kPa）以下的压力和180℃以下的温度下连续运行 °F（82 °C）。 1.2 本规范包括对配件和压缩套筒上使用的材料、工艺、尺寸和标记的要求。性能要求见规范 第877页 对于含有PEX管道的系统和规范 769年 对于包含PE-RT管道的系统。 1.3 以英寸-磅单位表示的值应视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准值。 1.4 以下预防性警告仅适用于测试方法部分，第节 10 。 本标准并不旨在解决与其使用相关的所有安全问题（如有）。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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers cold-expansion fittings using metal compression-sleeves for use with crosslinked polyethylene (PEX) plastic pipe in 3 / 8 -in., 1 / 2 -in., 5 / 8 -in., 3 / 4 -in., 1-in., 1 1 / 4 -in., 1 1 / 2 -in., and 2 in. nominal diameters, meeting the requirements of Specification F876 or F3253 , and for use with Polyethylene of Raised Temperature (PE-RT) pipe in 3 / 8 , 1 / 2 , 5 / 8 , 3 / 4 , 1, 1- 1 / 4 , nominal diameters meeting the requirements of Specification F2769 , whereby the pipe is cold-expanded before fitting assembly. The components covered by this specification are intended for use in residential and commercial, hot and cold, potable water distribution systems or other applications such as municipal water service lines, building supply lines, radiant panel heating systems, hydronic baseboard heating systems, snow and ice melting systems, geothermal underground pipe systems and building services pipe with continuous operation at pressures up to and including 100 psi (690 kPa), and at temperatures up to and including 180 °F (82 °C). 1.2 Included in this specification are the requirements for materials, workmanship, dimensions, and markings to be used on the fittings and compression-sleeves. Performance requirements are as referenced in Specification F877 for systems containing PEX pipe and Specification F2769 for systems containing PE-RT pipe. 1.3 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. 1.4 The following precautionary caveat pertains only to the test method portion, Section 10 , of this specification. 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. 1.5 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.