One. What is the maximum temperature that PPR pipes can withstand?
1、 According to our understanding, the temperature resistance of PPR pipes depends on the material. For example, the temperature resistance of PPR hot water pipes is 95 degrees Celsius, but the operating temperature for water pipes should be below 70 degrees Celsius. The temperature resistance of PPR cold water pipes is approximately 20 degrees Celsius, and the temperature resistance of PPR aluminum-plastic pipes is around 85 degrees Celsius, and so on.
2、Different brands and types of PPR pipes have different temperature resistance. When selecting pipes, if you are unsure about the pipe's temperature resistance, please consult with relevant sales personnel.
Two. What is the hot-melt temperature for PPR pipes?
The melting temperature of PPR pipes should reach 260-280 degrees. During the melting process, it is crucial to maintain this temperature, as either too high or too low temperatures will prevent the PPR pipes from fully fusing, creating a potential water leakage hazard. When using a heat welding machine, follow the indicator lights: red indicates heating, and green indicates stable temperature. once both indicator lights are green, the machine is ready for use.
Three. How long can PPR pipes last?
Long-lasting PPR pipe materials, when used at their specified operating temperature and pressure, can have a service life of up to 50 years or more. The typical design life for cold and hot water pipes in residential buildings is 50 years, while some municipal engineering projects may require a lifespan of 100 years. The service life of plastic pipes depends on the plastic material itself and is closely related to the operating temperature, operating pressure, and pipe wall thickness. In reasonable temperature and pressure ranges, appropriately sized cross-linked polyethylene (PEX) and polypropylene (PPR) pipes can have a service life of 50 years or more.