冷熱水管
ppr水管分為熱水管和冷水管，會有藍色、紅色線標識。冷水管管壁較薄，熱水管管壁較厚，---些，加上冷熱水管價差不大，所以，現在大部分家庭，裝修都會考慮全屋熱水管，ppr水管價格，冷水也使用熱水管。
cold&hot water pipeppr water pipe is divided into hot water pipe&cold water pipe， which will be marked with blue&red lines. the wall of cold water pipe is thinner，&the wall of hot water pipe is thicker， which is more durable. in addition， the price difference between cold&hot water pipes is not big. therefore， most families now cider the whole house hot water pipe for decoration，&cold water also uses hot water pipe.
大口徑的 ppr 管材，比如dn 110以上，可以通過法蘭與鋼管進行機械連接，只需要將法蘭上的螺絲擰緊即可。 large diameter ppr pipes，ppr水管安裝， such as dn 110/above， can be mechanically connected with the steel pipe through the flange，&only need to tighten the screws on the flange.
ppr水管在連接時，朝陽區ppr水管，無旋轉地把管端導入加熱套管內，插入到所標志的---，同時無旋轉地把管件推到加熱管上，達到規定標志處。一般地可用心中默讀數字法掌握加熱時間，或觀察管件、管材的加熱程度，當模頭上出現一圈ppr熱熔凸緣時，即可將管材、管件從模頭上取下進行下道工序。
when the ppr water pipe is connected， the pipe end is led into the heating sleeve without rotation&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，進口ppr水管， the heating time can be mastered by reading numbers in heart，/the heating degree of pipe fittings&pipes can be observed. when a circle of ppr hot-melt flange appears on the die head， the pipe&pipe fittings can be removed from the die head for the next process.
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