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家庭自来水管道安装有什么方法

家庭自来水管道安装有什么方法

浏览：47次 | 提问时间： 06-22 03:10

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渺小 06-22 03:11

水管安装时隐蔽工程施工的一重要环节，正确的安装方式能够保证水管的使用寿命，能够保证后续工作顺利进行。下面来说说在安装过程中如何安装以及我们要注意些什么。水管安装材料验收施工材料的好坏，直接影响施工质量以及日后使用所带来的因材料较差所带来的隐患。安装前应严格检查水管，水管内外壁应光滑、平整，无气泡、裂口、裂纹、凹陷、脱皮和严重的冷斑及明显的痕迹。现场交底安装人员应仔细阅读图纸，确认热水器、水槽、台盆、洗衣机等设施设备的位置，了解业主或设计师有无特殊要求，如有特殊要求应按照业主或设计师指示进行施工。管材切割为了安装过程中不必要的浪费行为，安装人员应量好所需管材的长度进行切割。管材切割采用专用管剪切断，管剪刀片卡口应调整到与所切割管径相符，旋转切断时应均匀加力，断管时，断面应同管轴线垂直，切断后，断口整圆截面无毛刺。管材连接水管与管件相连采用热熔方式，热熔连接最为可靠、操作方便、气密性好、接口强度高。连接前，应先清除管道及附件上的灰尘及异物。管道连接采用熔接机加热管材和管件，管材和管件的热熔深度和时间应符合要求。热熔焊接时，切勿旋转。带丝管件连接时，应缠绕生料带，确保密封。管道固定为了确保水管在日后使用中，不会因为水压造成的共振，所以所有水管必须使用管卡固定。管卡间距在400―500mm，外径在25mm以下的管道，转角及水表处及管道终端的100mm设置管卡。如特殊情况走地槽的水管，砂浆填埋厚度需100mm。打压验收要点水管安装结束后，要进行打压测试，所有安装完毕后的内丝弯需要安装闷头或三角阀确保密封。水管试压是为了确保水管质量与安装质量的测试，水管测压利用打压泵向管内打入≥0.6Mpa压力(一些厂家为了体现自身品牌管材的质量，建议管内压力0.8Mpa。)，测压时间不低于30分钟，压力下降

我满身是刺全身冰冷你爱吗 06-22 03:19

安装水管时，安装人员会在监理的监督下进行严格的试压测试，所以在节点验收的时候，我们只要关注水管及管件阀门安装牢固，位置正确的问题，连接处无渗漏。再观察管道位置是否左热右冷，再看看龙头及阀门安装位置是否平整、开动灵活、运转正常、出水畅通。①在规定的冷却时间内，刚熔接好的接头还可校正，可少量旋转，但过了冷却时间，严禁强行校正。注意：接好的管材和管件不可有倾斜现象，要做到基本横平竖直，避免在安装龙头时角度不对，不能正常安装。②在规定的冷却时间内，严禁让刚加工好的接头处承受外力。③当使用带金属螺纹的PP-R管件时，白色的生料带必须牢固密封，以避免从螺纹处漏水。④过度拧紧带金属螺纹的PP-R管件时，可能会出现拧裂管件而导致漏水，应注意用力适度。⑤要用专业的管卡固定，切不可用勾钉，以防止损坏水管，减少水管寿命。冷水管管卡间距常规为50±5cm，热水管管卡间距为35±5cm，如管卡不到位，会导致水管抖动，产生噪音。⑥水管走向应横平竖直(在开槽为横平竖直的前提下)，避免硬拉或扭曲水管，造成出水口与墙面不平行，影响美观及混合龙头的安装。⑦水路改造时，给以后安装电热水器、分水龙头等预留的冷、热水上水管应该注意四点：Ⅰ保证间距15厘米(现在大部分电热水器、分水龙头冷热水上水间距都是15厘米，也有个别的是10厘米)，Ⅱ冷、热水上水管口高度一致，Ⅲ冷、热水上水管口垂直墙面，以后贴墙砖也应该注意别让瓦工弄歪了(不垂直的话，以后的安装可就费劲了)，Ⅳ冷、热水上水管口应该高出墙面两厘米，铺墙砖时还应该要求瓦工铺完墙砖后，保证墙砖与水管管口同一水平。尺寸不合适的话，以后安装电热水器、分水龙头等，很可能需要另外购买管箍，内丝等连接件才能完成安装

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