





正确的法兰连接操作应按如下步骤进行:
①在小型采暖系统中,可以采用螺纹连接的法兰。
②法兰连接前,应先检查两个法兰是否平行(法兰平行度偏差≯法兰外径的1.5%)和法兰连接面是否清洁。在检查两个法兰螺栓孔同心度时,若螺栓无法穿过,ppr管件规格,应进行铰孔(而不是扩孔),ppr管件,或者重新调整法兰。
③法兰连接时,应采用同一规格的螺栓;螺栓的垫片只能使用一片;螺栓的插入方向应一致。
④拧紧螺栓应按对称的顺序或十字法顺序,分几次拧紧。紧固后伸出螺母的螺栓长度一般不宜超过螺距的2倍。

ppr管在电气部分:
进地下车库的电缆保护管,套管必须出墙0.5m左右,便于后期电缆封堵及外墙防水。
提前准备后期配套设施的规划图纸,如供配电施工图纸及室外管网图。这样可以缩短交房时间和节约成本。
地下车库的电气预埋前结合风管、管道图纸,避免灯具与风管和管道重叠,造成后期灯具安装时敷设明线,增加造价及影响美观。
PPR tube in the electrical part:
For the cable protection pipe entering the underground garage, the sleeve must be about 0.5m out of the wall, which is convenient for later cable plugging and external wall waterproof.
Prepare the planning drawings of supporting facilities in advance, such as power supply and distribution building drawings and outdoor pipe network drawings. This can shorten the delivery time and s***e costs.
Before the electrical pre burying of underground garage,襄阳ppr管件, the air duct and pipeline drawings shall be combined to ***oid the overlapping of lamps with air duct and pipeline, resulting in the laying of open lines during the later installation of lamps, increasing the cost and affecting the appearance.

直接头:当水管不够长时,可以通过直接头连接两根管子来延伸。
弯头:用于改变水管的方向,分为45°弯头和90°弯头。
三通:水管需要分路时,ppr管件价格,连接管子用。
堵头:主要用来暂时封闭出水口,等安装水阀时再取下。
Direct head: when the water pipe is not long enough, it can be extended by connecting two pipes with the direct head.Elbow: used to change the direction of water pipe, divided into 45 parts ° Elbow and 90 ° Elbow.
Tee: when the water pipe needs to be shunted, it is used to connect the pipe.
Plug: it is mainly used to temporarily close the water outlet and remove it when installing the tap.

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