The sealing failure of stainless steel pipe fittings is mainly manifested in leakage. In the pipeline systems and devices in various industries, the sealing failure of flange joints can cause a large amount of waste of energy and raw materials. The cost of labor and materials, if it is more serious, it will lead to equipment scrapping, shutdown and production, casualties and serious environmental pollution.
The importance of inspection and replacement of rubber soft joint pipe flanges, in daily pipeline maintenance, sometimes the rubber soft joint flanges are inspected, mainly to see whether there is leakage and damage. Then you need to replace it. Each replacement must take into account the medium, temperature, pressure and even the construction condition of the site.
In the use of flanges, there are also many performance requirements, then when using this product, what aspects of the performance requirements need to be achieved? At first, it is necessary to meet the requirements of low cost, any user when using a product, also hope to have cost savings, the low cost here has two aspects of requirements, one is to make it need to have a low price of the product itself on the product, and also need to reduce the cost of welding, there are some products in the welding will increase the cost. This will also improve its overall use.
For you to analyze several common causes of stainless steel flange rust:
1, the surface of the stainless steel flange is attached to acid, alkali, salt and other substances (such as alkali water, lime water splashed on the decorative wall), causing local corrosion.
2, in the polluted air (such as the atmosphere containing a large number of sulfides, carbon oxides and nitrogen oxides), the condensation water forms sulfuric acid, nitric acid and ethyl acid liquid points, causing chemical corrosion. The above situation will cause damage to the protective film on the surface of the stainless steel flange, leading to corrosion. Therefore, in order to ensure that the metal surface is bright and not corroded.
3, stainless steel flange surface deposited with other metal elements of dust or different metal particles of adhesive. In humid air, the adhesive and condensate between the adhesive and the stainless steel flange connect the two into a miniature battery, resulting in an electrochemical reaction and damage to the protective film. This is called electrochemical corrosion.
4, stainless steel flange surface attached juice (such as melon, vegetables, noodle soup, sputum, etc.). In the action of water and oxygen, acid is formed, and for a long time, acid corrodes metal surfaces.
