1.1 本规范涵盖了与交联聚乙烯（PEX）和交联聚乙烯/铝/交联聚乙烯（PEX-AL-PEX）管一起使用的带有o形密封圈和铜压接环的金属插入配件 1. / 2. , 3. / 4. 1和1 1. / 4. 在里面符合规范要求的标称直径 F876 或 F3253 和 F2262页 分别地这些配件适用于125 psi（861.9 kPa）（PEX-AL-PEX）和100 psi（689.5 kPa）（PEX）冷水和热水分配系统，温度高达180℃ 华氏度（82 °C）。包括对配件和环上使用的材料、工艺、尺寸、性能和标记的要求。 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 符合本规范要求对这些配件进行测试并根据规范进行认证 F877 和 F2262页 . 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers metal insert fittings with o-ring seals and copper crimp rings for use with Cross-linked Polyethylene (PEX) and Cross-linked Polyethylene/Aluminum/Cross-linked Polyethylene (PEX-AL-PEX) tubing in 1 / 2 , 3 / 4, 1, and 1 1 / 4 in. nominal diameters that meet the requirements for Specifications F876 or F3253 , and F2262 respectively. These fittings are intended for use in 125 psi (861.9 kPa) (PEX-AL-PEX) and 100 psi (689.5 kPa) (PEX) cold- and hot-water distribution systems operating at temperatures up to and including 180 °F (82 °C). Included are the requirements for materials, workmanship, dimensions, performance, and markings to be used on the fittings and rings. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 Compliance with this specification requires that these fittings be tested and certified to Specification F877 and F2262 . 1.4 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.