PPR cold water pipes and hot water pipes have different requirements and standards for their water temperature. The PPR cold water pipe cannot be connected to the hot water pipe for use. The impact is very serious, and the consequence is that the water pipe will burst.
The temperature tolerance of PPR is 95 degrees, which can reach 110 degrees instantaneously. If there is water in the pipe, it cannot be lower than 0 degrees, otherwise the water may freeze and crack the pipe. The withstand pressure of the cold water pipe is 1.0 or 1.6 MPa, and the withstand pressure of the hot water pipe is 1.6 or 2.0 MPa; PPR cold water pipes are generally used as tap water pipes, and hot water pipes are generally used as heating connection pipes, and can also be used The hot water pipe of the water heater; Amazon PPR cold water pipe and hot water pipe have different withstand pressures, and the cold water pipe should be small. Therefore, if the cold water pipe is used in the hot water pipe with higher working pressure (such as heating connection pipe), it is easy to cause The pipe wall is cracked, but this is not absolute. Some pipes can hold up when cold water is used for hot water. However, it is not allowed for cold water pipes to be used as hot water pipes. Hot water pipes can be used as cold water pipes; Cold water pipes and hot water pipes have different wall thicknesses and different prices because of their different pressure tolerance requirements. Hot water pipes are thicker than cold water pipes and are more expensive. Therefore, it is economical to use hot water pipes as cold water pipes. Not cost-effective; the hot water pipe is marked with a red line, the cold water pipe is marked with a blue line, and there is a text mark and a pressure resistance mark. In addition, if the pipes of the same specification have a relatively thick wall, the cold and hot water pipes can be distinguished.