现在，一些小的宾馆或一些建筑物的部分商业、办公区域也需要用到采暖和生活热水，他们的热负荷或生活热水用量要比家庭大许多（即并联安装若干台燃气壁挂炉）；因此热水管的管径比较大，在与集分水器、隔离罐、控制附件等连接时需要用到法兰连接。
Now， some ***all hotels or some commercial and office areas of some buildings also need heating and domestic hot water， and their heat load or domestic hot water cost is much larger than that of families (that is， several gas-fired wall mounted boilers are installed in parallel); Therefore， the diameter of the hot water pipe is relatively large， and flange connection is needed when connecting with the water distributor， isolation tank， control accessories， etc.
什么是低温脆性？低温脆性是指材料的冲击吸收功随温度降低而降低，PVC排水管厂家，当试验温度低于Tk(韧脆临界转变温度)时，冲击吸收功明显下降，材料由韧性状态变为脆性状态，这种现象称为低温脆性。
What is low temperature brittleness? Low temperature brittleness means that the impact absorbed energy of material decreases with the decrease of temperature. When the test temperature is lower than TK (critical transition temperature of toughness and brittleness)， the impact absorbed energy decreases clears，PVC排水管咨询， and the material changes from ductile state to brittle state. This phenomenon is called low temperature brittleness.
ppr管的耐水性：
耐水管件的连接和防渗漏性能也是应该注意的。由于PPR管生产线经过对该管材特点的分析，PVC排水管，设计生产了的剥铝工具，将铝层及PPR外层剥离掉，同样可以采用热熔承插的方法进行连接，PVC排水管图片，消除了普通PPR管用铜管件连接容易渗漏的引患，更好的是管道实现其耐水性能。
Water resistance of PPR pipe:The connection and leakage resistance of water resistant pipe fittings should also be paid attention to. Because of the analysis of the characteristics of the pipe， the production of the stripping tool is designed and produced. The aluminum layer and the outer layer of PPR can be separated. The hot melt socket can be used to connect the pipe. The common copper pipe used in PPR pipe is easy to leak， and the better is to realize the water resistance of the pipe.
PVC排水管-Gafloon卡弗龙-PVC排水管咨询由台州艾菲力塑胶有限公司提供。台州艾菲力塑胶有限公司为客户提供“塑料制品（不含塑料桶）,橡胶制品（不含橡胶桶）,阀门”等业务，公司拥有“Gafloon卡弗龙”等品牌，专注于塑料管等行业。，在浙江省台州市三门县西区开发区的名声不错。欢迎来电垂询，联系人：郑总（Rainy）。同时本公司还是从事PPR管，地暖管，PVC管的厂家，欢迎来电咨询。