冷热水装置用塑料管道系统.耐升温的聚乙烯(PE-RT).第2部分:管道

[中文适用范围]： 本ISO 22391-2部分规定了由耐热聚乙烯（PE-RT）I型和II型制成的管材的特性，这些管材用于建筑物内热水和冷水安装系统，用于输送水（无论是否用于人类消费，即家庭系统）以及供暖系统，其设计压力和温度应符合ISO 22391-1中规定的适用应用类别。本部分涵盖了各种服务条件（应用类别）、设计压力和管材尺寸类别，并规定了测试参数和测试方法。结合ISO 22391的其他部分，它适用于PE-RT管材、管件、其接头，以及用于热水和冷水安装的具有PE-RT成分以及其他塑料和非塑料成分的接头。它适用于有或无阻隔层的管材。它不适用于超过ISO 22391-1中规定的设计温度、最高设计温度或故障温度的值。注：采购方或指定方有责任根据特定要求以及任何相关的国家法规和安装实践或规范，从这些方面做出适当的选择。 [外文原描述]： ISO 22391-2:2009 specifies the characteristics of pipe made of polyethylene of raised temperature resistance (PE-RT), Type I and polyethylene of raised temperature resistance (PE-RT), Type II intended to be used for hot and cold water installations within buildings for the conveyance of water, whether or not the water is intended for human consumption (domestic systems) and for heating systems, under the design pressures and temperatures appropriate to the class of application according to ISO 22391-1. ISO 22391-2:2009 covers a range of service conditions (classes of application), design pressures and pipe dimension classes, and also specifies test parameters and test methods. When used in conjunction with the other parts of ISO 22391, it is applicable to PE-RT pipes, fittings, their joints, and to joints having components of PE-RT, as well as of other plastics and non-plastics materials, respectively, used for hot and cold water installations. It is applicable to pipes with or without a barrier layer or layers.