1. The appearance of PPR hot and cold pipes is different
Usually, the PPR hot water pipe is marked with a red line, and the PPR cold water pipe is marked with a blue line, and has a text mark and a pressure tolerance mark. In addition, pipes of the same specification can also distinguish between hot and cold water pipes, and the wall thickness of hot water pipes is thicker than that of cold water pipes.
2.The degree of high temperature resistance is different
The PPR hot water pipe can withstand a temperature of 95 degrees, and can reach 110 degrees in an instant. The hot water pipe can withstand a temperature of 70 degrees, and its service life can reach more than 50 years. PPR cold water pipes generally cannot exceed 45 degrees, otherwise long-term work in hot water will quickly age and crack.
3.Different pressure resistance
The PPR hot water pipe is hit with a hammer and cracked, while the PPR cold water pipe may only be flattened due to the force and will not crack.
4. Different pressure resistance.
The pressure of the cold water resistant pipe is 1.0 or 1.6 MPa, and the pressure of the hot water pipe is 1.6 or 2.0 MPa. It can be seen that the PPR hot water pipe bears more pressure than the cold water pipe.
5.The price is different.
Because the pressure requirements of the hot water pipe and the cold water pipe are different, the wall thickness of the two water pipes is also different, so the price is different. The wall of the hot water pipe is thicker than that of the cold water pipe, so the price is relatively higher.
6. Different uses.
PPR hot water pipes are mainly used for cold and hot water systems in buildings, such as apartments and schools; heating systems in buildings, including floor and radiant heating systems; direct drinking pure water supply systems; central (centralized) air conditioning systems; Transport or discharge chemical media and other industrial pipeline systems and other fields. PPR cold water pipes are usually used as water pipes.