The appearance of aluminium alloy pipeline brought what

Because the development of industry and private vehicles, the huge increase in air pollution is becoming worse environmental air contains a lot of impurities, these impurities mixed with water will cause the original use of steel pipe or galvanized pipe rust, rust, slag, rust water can cause the back-end gas path, valve core block, seal wear and so on a series of problems and cause mechanical failure, will greatly reduce the use of air supply system cycle, thus how important it is to choose a good compressed air piping system, which can effectively reduce the late maintenance cost.

Aluminum alloy piping system has been widely used for conveying compressed air, vacuum, nitrogen and inert gas in European and American enterprises. The product has been recognized by many well-known enterprises in China for its excellent features of corrosion resistance, quick installation, low pressure drop and 100% reuse. In these two years, due to the progress of production technology, the production cost of thin-walled stainless steel pipeline fell, so that it into the compressed air delivery option is no longer medicine, food field exclusive supplies, more air compressor users can use to become a reality.

There is a kind of material that calls aluminium alloy to appear now, so it replaces red brick to be able to have its own advantage certainly. The volume of red brick is bigger, use red brick to be able to occupy a place, and aluminium alloy is different. It is thinner, when decorating super convenient, and the material of aluminium alloy also has the same firm degree of red brick, compare so, aluminium alloy is used to wrap sewer a bit better.

The commonly used cast iron pipe materials are malleable cast iron and nodular cast iron, the general restrictions are: use in the medium temperature of -29 ~ +343℃ compression or non-compression pipe; Shall not be used for conveying combustible fluid pipeline with medium temperature higher than 150℃ or surface pressure greater than 2.5MPa; Shall not be used for conveying toxic media under any temperature and pressure conditions; Not under the condition that the conveying temperature and pressure cycle change or the pipeline has vibration; In practical production, malleable iron is often used for non-pressurized valve handwheels or underground pipelines. Ductile iron is often used in valves and bodies in industrial piping.

Stainless steel in contact with wet chloride, there is the possibility of stress corrosion cracking and pitting, should avoid contact with wet chloride, or control the concentration of chlorine ions in the material and the environment is not more than 2.5×10-7. In addition, austenitic stainless steel using temperature more than 525℃, its carbon content should be greater than 0.04%, otherwise the strength of steel will have a significant decline.