Compressed air pipes are generally marked with light gray, that is, the compressed air pipes are painted into light gray. The compressed air pipes are applicable to compressed air, auto parts stores and pneumatic (pneumatic) tools, as well as the transportation of water and non corrosive liquids. The compressed air pipes are widely used in industry, construction industry, agriculture and other fields. Appearance, softness and elasticity are similar to rubber. It is a chemical product with anti-oxidation, anti-aging and anti full text irritation. It is not soft in summer, hard and crack in winter. Recently, when I checked the data, I found that many people were searching for the color of compressed air pipes, and their replies also focused on gray and blue. Some of our friends are in accordance with the provisions of Article 7 of China's hgj1074-79 regulations on thermal insulation and painting of equipment pipelines in chemical plants on the color and lettering of industrial pipelines: the compressed air pipelines of air (compressed air) are painted dark blue; The annotated name of the pipeline is: compressed air; Note color: white. The colors of other gas pipelines are: oxygen (sky blue), hydrogen (dark green), nitrogen (yellow), nitrogen dioxide (black) and vacuum (white). The other part of the compressed air pipeline ash pipes are from GB 7231-2003 basic identification colors, identification symbols and safety signs of industrial pipelines. Here, eight basic identification colors of compressed air pipes and corresponding color standard numbers and color samples are described in detail. The air medium to which the compressed air belongs should be marked with light gray. More careful friends can find that one is the petrochemical industry standard and the other is the national standard; One is a separate industry standard, and the other is a national mandatory standard. We can easily confirm that the color of compressed air pipe should be light gray. Relying on the complete hardware supporting and operation management system, muzhao fluid relies on its profound technical strength and innovation ability, creative resource integration marketing platform, and a team with a sense of responsibility to ensure that we can provide customers with excellent and efficient services at any time and at any place, and has won the recognition of our products and services from the majority of users. At the same time, muzhao fluid is in accordance with the requirements of GB 7231-2003? According to the basic identification colors, identification symbols and safety signs of industrial pipelines, the compressed air pipelines are precoated with corresponding colors for different fluids, so that customers can choose to use them conveniently.