价格：面议
0
联系人：
电话：
地址：
PPR管为什么会有低温脆性的特点？它是由单体和少量乙烯单体在加热、加压和催化剂作用下无规共聚得到的。乙烯单体随机地分布到长链中，其中乙烯单体一般控制在3-5%之间。乙烯含量和乙烯与的聚合方式决定了其具有低温脆性的特点。
Why does PPR pipe have the characteristics of low temperature brittleness? It is obtained by random copolymerization of monomer and a small amount of ethylene monomer under heating，ppr管件名称， pressure and catalyst. Ethylene monomer is randomly distributed in long chain， and ethylene monomer is generally controlled between 3-5%. The content of ethylene and the polymerization of ethylene determine its low temperature brittleness.同种规格的PPR热水管壁厚要比冷水管的厚，ppr管件品牌，简单举例：D25×2.3 D25×2.8 D25×3.5 D25×4.2 这里列举的是外径为25MM的PPR管所对应的四种不同规格，前面两种为冷水管，后面两种为热水管，因此可以非常明显的看出，冷水管的壁厚要小于热水管。
The wall thickness of PPR hot water pipe of the same specification is thicker than that of cold water pipe. Simple example: D25 × 2.3 D25 × 2.8 D25 × 3.5 D25 × 4.2 here are four different norms of PPR pipe with outer diameter of 25 mm. The first two are cold water pipes and the latter two are hot water pipes. Therefore，ppr管件大全， it is very clear that the wall thickness of cold water pipe is smaller than that of hot water pipe.
·安装完毕后的试压工作，试验压力为工作压力的1.5倍，且压力值不得小于0.6MPa，ppr管件，测试时间约20-30分钟。
·管材安装要遵循“水走天”原则，避免后期维护损害管道。
·安装过程中要及时封住管材开口处，避免杂物进入管道系统
Tips for PPR tube installation
·After installation， the test pressure is 1.5 times of the working pressure， and the pressure value shall not be less than 0.6MPa， and the test time is about 20-30 minutes.
·Pipe installation chould follow the principle of "water goes to the sky" to avoid damage to the pipe during later maintenance.
·In the process of installation， the opening of the pipe should be sealed in time to avoid impurities entering the pipe system
