塑料管道系统. 压力管道系统的机械配件. 规格

[中文适用范围]： 本文件规定了用于连接塑料压力管道系统的机械配件的要求和测试方法，包括用于以下用途的金属管道的过渡配件： ——气体燃料（GAS）的供应； ——人类消费的供水（W），包括处理前的原水和一般用途的供水，以及地下排水和加压污水处理（P）； ——灌溉用水供应（I）； ——工业应用（IS）。 本文件仅适用于相关系统标准中规定的具有工作温度和压力限制的机械配件。 注：可使用机械配件的塑料管道的国际标准清单可在附录 A 中找到。 本文件不包括法兰。 本文件不涵盖建筑物内热水和冷水系统以及区域供热应用的机械配件。 [外文原描述]： This document specifies the requirements and test methods for mechanical fittings intended to join plastic pressure piping systems including transition fittings to metal pipes for the following: — supply of gaseous fuels (GAS); — supply of water for human consumption (W), including raw water prior to treatment and for the supply of water for general purposes, as well as underground drainage and sewerage under pressure (P); — supply of water for irrigation (I); — industrial applications (IS). This document is applicable only to mechanical fittings with operating-temperature and pressure limits as indicated in the relevant systems standards. NOTE A list of International Standards for plastic pipes for which mechanical fittings can be used can be found in Annex A. Flanges are not covered by this document. Mechanical fittings for hot and cold water systems inside buildings, as well as for district heating applications, are not covered by this document.