0简介本标准是为印度市场制定的。1.范围1。1概述1。1.1本标准涵盖标称尺寸为1014、1216、1620、2025、2532、3240、4050、5063、6375、7590和90110的聚乙烯/铝/聚乙烯（PE-AL-PE）和聚乙烯/铝/交联聚乙烯（PE-AL-PEX）复合压力管道的黄铜压缩配件，并规定了材料、物理特性、性能测试和标记的要求。注:标称尺寸的前两位数字表示近似内径，单位为mm，以下数字表示标称外径，单位为mm。例如，2025管道意味着内径约为20毫米（0.75英寸），外径约为25毫米（1英寸）。 1.1.2本标准涵盖的压缩配件具有螺纹压缩螺母和压缩开口环，或带有螺栓和螺母的分体式压缩卡箍，以实现其内部密封。1.1.3本标准涵盖的压缩配件拟用于（a）95°C（203°F）下额定压力为690 kPa（100 psi）的热水和冷水分配系统，用于PE-AL-PEX管道；对于PE-AL-PE管道，温度为80℃（176℉）。1.1.4本标准涵盖的压缩配件拟用于住宅和商业应用的饮用水分配系统、供水系统、地下灌溉系统、辐射板加热系统、底板、冰雪融化系统、压缩空气管道系统以及与复合管道和配件兼容的气体管道系统

0 IntroductionThis Standard was developed and is intended for the India market.1 Scope1.1 General1.1.1This Standard covers brass compression fittings for polyethylene/aluminum/polyethylene (PE-AL-PE) and polyethylene/aluminum/cross-linked polyethylene (PE-AL-PEX) composite pressure piping in nominal sizes 1014, 1216, 1620, 2025, 2532, 3240, 4050, 5063, 6375, 7590, and 90110 and specifies requirements for materials, physical characteristics, performance testing, and markings.Note:The first two digits of the nominal size indicate the approximate inside diameter, in mm, and the following digits indicate the nominal outside diameter, also in mm. For example, a 2025 pipe means the inside diameter is approximately 20 mm (0.75 in) and the outside diameter is approximately 25 mm (1 in).1.1.2Compression fittings covered by this Standard have threaded compression nuts and compression split rings or split compression clamp halves with bolts and nuts to effect their internal sealing.1.1.3Compression fittings covered by this Standard are intended to be used in hot- and cold-water distribution systems with a rated pressure of 690 kPa (100 psi) at(a) 95 °C (203°F) for PE-AL-PEX pipes; and(b) 80 °C (176°F) for PE-AL-PE pipes.1.1.4Compression fittings covered by this Standard are intended to be used in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, radiant panel heating systems, baseboard, snow- and ice-melt systems, compressed-air piping systems and piping systems for gases that are compatible with the composite pipe and fittings