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装修中，十堰PVC排水管，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，PVC排水管，水管上也会标注20*2.8、25*4.2，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，PVC排水管加盟， 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，PVC排水管生产， 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.
PPR管和PVC管的区别可以以管径的粗细为依据，但是这种鉴别的要领就必要经历了。首先对管子的环境都要熟习，少要有印象。这样的话时间长了看到管子就知道其规格是多大的了。
The difference between PPR pipe and PVC pipe can be based on the thickness of pipe diameter， but the essentials of this identification must be experienced. First of all， we should be familiar with the environment of the pipe， and have less impression. In this way， after a long time， you can see the size of the pipe.
根据耐腐蚀性能来参考?
具体来说，PPR管材耐腐蚀与防结垢性能则施工项目管道的基本需求，优良的PPR管材的耐化学腐蚀性能更好，其能够抵抗水中的化学元素的腐蚀，与此同时，其表面则可避免水垢的形成，以此可以促使输送的水更加洁净与卫生。
According to the corrosion resistance
Specifically，Corrosion resistance and anti scaling performance of PPR pipe are the basic requirements of building project pipeline. Excellent PPR pipe has better chemical corrosion resistance， which can resist the corrosion of chemical elements in water. At the same time， its surface can avoid the formation of scale， which can promote the transmission of water more clean and sanitary.
