管材管道在使用過程中熱脹冷縮現(xiàn)象也是不可避免的。選自耐水性材料的PPR管道剛性增強(qiáng)，水平布管時(shí)不易下垂，增加了管線的美觀，管道的彎曲回彈性得到提高，在高溫下時(shí)仍保持外形的穩(wěn)定。

The phenomenon of heat expansion and cold contraction is inevitable in the use of pipe. The PPR pipe selected from water-resistant material has stronger rigidity， and it is not easy to sag during horizontal pipe laying， which increases the appearance of the pipeline， improves the bending resilience of the pipeline， and maintains the stability of the shape at high temperature.

In addition to the wall thickness， we can also distinguish from the color marking on the outer wall of PPR pipe. Color marking is also called coextrusion. The PPR hot water pipe is marked with red color marking，PVC管業(yè)廠家， the PPR cold water pipe is marked with blue color marking， and there are also manufacturers who do not need any color marking for PPR cold water pipe. 

ppr水管在連接時(shí)，宿州PVC管業(yè)，無(wú)旋轉(zhuǎn)地把管端導(dǎo)入加熱套管內(nèi)，插入到所標(biāo)志的深度，同時(shí)無(wú)旋轉(zhuǎn)地把管件推到加熱管上，達(dá)到規(guī)定標(biāo)志處。一般地可用心中默讀數(shù)字法掌握加熱時(shí)間，或觀察管件、管材的加熱程度，當(dāng)模頭上出現(xiàn)一圈PPR熱熔凸緣時(shí)，即可將管材、管件從模頭上取下進(jìn)行下道工序。

When the PPR water pipe is connected， the pipe end is led into the heating sleeve without rotation and inserted to the marked depth. At the same time， the pipe fitting is pushed onto the heating pipe without rotation to reach the specified mark. Generally，PVC管業(yè)制造， the heating time can be mastered by reading numbers in heart， or the heating degree of pipe fittings and pipes can be observed. When a circle of PPR hot-melt flange appears on the die head， the pipe and pipe fittings can be removed from the die head for the next process.

PVC管業(yè)制造-Gafloon卡弗龍-宿州PVC管業(yè)由臺(tái)州艾菲力塑膠有限公司提供。臺(tái)州艾菲力塑膠有限公司為客戶提供“塑料制品（不含塑料桶）,橡膠制品（不含橡膠桶）,閥門”等業(yè)務(wù)，公司擁有“Gafloon卡弗龍”等品牌，專注于塑料管等行業(yè)。，在浙江省臺(tái)州市三門縣西區(qū)開發(fā)區(qū)的名聲不錯(cuò)。歡迎來(lái)電垂詢，聯(lián)系人：鄭總（Rainy）。同時(shí)本公司還是從事PPR管，地暖管，PVC管的廠家，歡迎來(lái)電咨詢。