标准摘要
[中文适用范围]： 本国际标准规定了压力下管道组件抗弯曲疲劳性能的测试方法。 该方法适用于与公称外径 de ≤ 63 mm 的 PE 管道一起使用的聚乙烯 (PE) 开孔三通、PE/金属过渡配件和 PE 分支鞍座。 注：该测试基于模拟环境温度下埋地管网实际产生的应力，即弯曲和拉应力的组合。 通过放大实践中观察到的位移来加速测试。 [外文原描述]： This International Standard specifies a method for testing the flexural fatigue resistance of piping assemblies under pressure. The method is applicable to polyethylene (PE) tapping tees, PE/metal transition fittings and PE branch saddles, intended for use with PE pipes having a nominal outside diameter d e u 63 mm. NOTE The test is based on simulating the stresses generated in practice on buried piping networks, i.e. combined bending and tensile stresses, at ambient temperature. The test is accelerated by magnifying the displacements observed in practice.
英文名称Plastics pipes and fittings — Bending-tensile cycle test for PE/metal transition fittings, PE tapping tees and PE branch saddles