标准摘要
[中文适用范围]： 该国际标准描述了制冷系统和热泵制冷剂回路中使用的柔性管元件（例如金属柔性管、金属柔性管、隔振器、膨胀节）和非金属管的要求、设计和安装。 它还描述了对用于制冷系统和热泵的蒸发和/或冷凝侧的非金属管（例如塑料）的密封性和渗透性进行鉴定的要求。 本国际标准不适用于偶尔受力超过弹性极限（例如，在维修工作期间）的软管，或自由旋转或铰接的接头。 [外文原描述]： ISO 13971:2012 describes requirements, design and installation of flexible pipe elements (e.g. metallic flexible pipe, metallic flexible tube, vibration isolator, expansion joint) and non-metallic tube used in the refrigerant circuits of refrigerating systems and heat pumps. ISO 13971:2012 also describes the requirements to qualify the tightness and permeability of non-metallic tubes (e.g. plastic) used in evaporating and/or condensing sides of refrigerating systems and heat pumps. ISO 13971:2012 does not apply to flexible pipes that are only occasionally stressed beyond the elastic limit (e.g. during repair work), or to joints that are free to rotate or hinge.
英文名称Refrigeration systems and heat pumps — Flexible pipe elements, vibration isolators, expansion joints and non-metallic tubes — Requirements and classification