PPR管格与管件连接端面必须清洁、干燥、无油。
用卡尺和合适的笔在管端测量并标绘出热熔深度，热熔深度应符合下表规定：
熔接弯头或三通时，按设计图纸要求应注意其方向，在管件和管材的直线方向上，用辅助标志标出其位置。
The connecting end face of PPR pipe lattice and pipe fittings must be clean， dry and oil-free.
Measure and plot the hot melt profundity at the pipe end with a caliper and a suitable pen. The hot melt profundity shall meet the requirements of the following table:
When welding elbows or tees， the direction could be noted according to the requirements of design drawings，安庆ppr管件， and the place shall be marked with auxiliary marks in the straight direction of pipe fittings and pipes.
用户可以根据PPR管材的耐高温性与耐高压性来参考，PPR原料的熔点温度较高，而原料中掺入其它杂质则会致使PPR管材的熔点就会下降。
一、看外观：PPR管管子内外壁光滑。
二、手感：好的PPR水管质感细腻。
三、原料：PPR水管采用进口PPR原料
四．看热熔焊接：好的PPR水管热熔焊接时是***无味的白烟，劣质PPR水管是冒***的黑烟、呛人。
装修中，常听工人说4分管、6分管，自己却不知道是什么意思？其实这指的是管子的外径，4分管外径20mm，6分管外径25mm。选择哪种管，要看水管的外径来决定。管4分管，只能使用4分管。管是6分管，使用6分管、4分管都可以。另外，水管上也会标注20*2.8、25*4.2，ppr管件，前面的20、25就是指管子外径，而后面的2.8、4.2则指水管的壁厚。一般管壁越厚，水管就越耐用。
Parameters of PPR tube
Decoration，ppr管件价格， often listen to workers say 4 in charge， 6 in charge， but do not know what it means? In fact， this refers to the outer diameter of the pipe. The outer diameter of 4 branch pipes is 20 mm， and that of 6 branch pipes is 25 mm. Which kind of pipe to choose depends on the outer diameter of the pipe. Only four branches can be used. The management is divided into 6 branches. It is OK to use 6 branches or 4 branches. In addition，ppr热熔管件， 20 * 2.8 and 25 * 4.2 will also be marked on the water pipe. The front 20 and 25 refer to the outer diameter of the pipe， while the back 2.8 and 4.2 refer to the wall thickness of the water pipe. Generally， the thicker the pipe wall is， the more durable the water pipe is.
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