| 摘要 |
PROBLEM TO BE SOLVED: To provide a cold/hot water conduit piping system in which dimension stability is excellent and in which workability is improved.SOLUTION: A cold/hot water conduit piping system 100 is a piping system for transporting cold/hot water whose temperature width is 20°C or greater. The cold/hot water conduit piping system includes: a fiber-reinforced composite pipe 200 including polyolefin resin and glass fiber; a metal-reinforced composite pipe including polyolefin resin and metal; and a connection member for connecting the fiber-reinforced composite pipe and the metal-reinforced composite pipe. Also, a linear expansion coefficient of the fiber-reinforced composite pipe is 6×10/°C or less. Furthermore, with respect to total capacity of the fiber-reinforced composite pipe and the metal-reinforced composite pipe 300, the capacity occupied by the fiber-reinforced composite pipe is 70% or greater.SELECTED DRAWING: Figure 1 |
