Thin-walled stainless steel water pipes should be the first choice. It is a newcomer in the domestic pipe field. It has important practical significance for improving the quality of modern buildings in China, improving the quality of water supply, reducing overall costs, protecting human health and saving water resources.
1. The sanitation of stainless steel water pipes
Stainless steel is a recognized healthy material that can be implanted in the human body, and stainless steel is generally used in occasions with high hygiene requirements. The stainless steel material is safe and non-toxic, no corrosion and exudate, no turbidity, no odor problems, no secondary pollution to the water quality, and keep the water quality pure and hygienic.
2. Material properties of stainless steel water pipes
The tensile strength of stainless steel water pipes is 520~750mpa, which is twice that of galvanized pipes, 3-4 times that of copper pipes, and 8-10 times that of PPRT pipes. The average thermal expansion coefficient of stainless steel pipes is 0.017mm/(m¡¤¡æ), which is close to copper pipes, while composite pipes are 1.5 times that of stainless steel pipes, and plastic pipes are 5-11 times that of stainless steel pipes. In view of the weakness of the excessive thermal expansion coefficient of plastic pipes, metal pipes should be used to transport hot water. The thermal conductivity of stainless steel water pipe is 15w/m¡¤¡æ(100¡æ), which is 1/4 of steel pipe and 1/25 of copper pipe. Stainless steel water pipes are especially suitable for hot water transportation due to their good heat preservation performance.
3. The economics of stainless steel water pipes
Most of the current stainless steel water supply pipes are thin-walled. Compared with PPR pipes, the price difference is not big. Once installed, stainless steel water pipes do not require maintenance, and the service life can reach at least 70 years. Its economic performance is unattainable by other pipes.