一、 当设计没有明确规定时,安装在便于维护的位置的即可,下面介绍几种伸缩节安装方案:
立管伸缩节安装:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/1ad5ad6eddc451daf61f6c32bafd5266d1163279?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
水平管道伸缩节安装:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/35a85edf8db1cb1377e65ccad154564e93584b5f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
支管伸缩节安装:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/bd315c6034a85edfb1739efa45540923dc54756f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
伸缩节穿楼板安装:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9d82d158ccbf6c81c9de4c31b03eb13532fa4079?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
二、伸缩节是防止管道热胀冷缩时将管道拉裂、变形或将管道接头处拉脱胶。
三、根据《建筑给水排水及采暖工程施工质量验收规范》GB20242的5.2.4条 排水塑料管必须按设计要求及位置装设伸缩节。如设计无要求时,伸缩节间距不得大于4m。5.3.2 塑料排水管要求每层设伸缩节,作为雨水管也应按设计要求安装伸缩节。
高层建筑中层高≤4米,每层设一个伸缩节。