ppr水管在连接时，无旋转地把管端导入加热套管内，插入到所标志的---，同时无旋转地把管件推到加热管上，达到规定标志处。一般地可用心中默读数字法掌握加热时间，或观察管件、管材的加热程度，当模头上出现一圈ppr热熔凸缘时，即可将管材、管件从模头上取下进行下道工序。
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， 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.
水阀
水路改造时，记得家里要安装一个总水阀，用来开启和关闭水流。这样家中发生漏水，或者需要更换水阀的时候，不用跑到楼下关水。水阀可以安装在水槽下方，不占空间。水阀价格比较贵，如果，pvc管业制造，你不提醒，工人不一定给你装，涪陵区pvc管业，等瓷砖贴好再发现就迟了。
water valvewhen rebuilding waterways， remember to install a main water valve at home to open&close the water flow. in this way， when there is leakage in the house/the tap needs to be replaced， there is no need to run downstairs to turn off the water. the water valve can be installed under the water tank without occupying space. the price of water valve is more expensive. if you dont remind，pvc管业， the workers dont have to install it for you. its too late to find it after the tiles are pasted.
ppr管材料的耐水性用软化维卡系数表示。在采暖、高温热水、明敷安装、户外给排水管道应用中耐水性材料的软化维卡系数具有明显的优势。软化系数的大小，pvc管业加盟，表明材料浸水后强度降低的程度，一般波动在0-1之间。软化系数越小，说明材料吸水饱和后的强度降低越多，所以其耐水性越差。对于经常位于水中或受潮---的重要结构物的材料，其软化系数不宜小于。受潮较轻的或次要结构物的材料，其软化系数不宜小于0.75。软化系数大于0.80的材料，通常可以认为是耐水的材料。
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