PP管是一种无毒、卫生、耐高温且可回收利用的管型，主要应用于建筑物室内冷热水供应系统，也广泛适用于采暖系统。
PP pipe is a non-toxic, hygienic, high temperature resistant and recyclable pipe type, which is mainly used in the indoor hot and cold water supply system of buildings, and also widely used in heating system.
PP管的特点是不锈蚀、耐磨损、不结垢、减小振动和噪声、防冻裂（超过-20℃的低温下pp管产生冻裂，高温的工作环境只要超过70℃产生分解，使用温度在-20℃到70℃）、防结露，热损失少、安装简单、使用寿命长。连接方式有焊接法、端缘焊接法、异材质接管三种，
PP pipe is characterized by no corrosion, wear resistance, no scaling, vibration and noise reduction, anti freezing crack (PP pipe will produce frost crack at low temperature over - 20 ℃, decomposition occurs only when working environment is over 70 ℃, and service temperature is from - 20 ℃ to 70 ℃), anti condensation, less heat loss, simple installation and long service life. There are three connection methods: welding method, end edge welding method and connecting pipe of different materials,