Adjust Valve Corrosion Problems And Solutions
Jul 05, 2019| Adjust valve corrosion problems and solutions
In the problem and solution of the corrosion-resistant regulating valve produced for corrosive media, the valve body cavity and the ball core are lined with corrosion-resistant and aging resistant polyfluoroethylene propylene by high-pressure injection molding process, so it has reliable corrosion resistance. Sex and sealing.
The chemical corrosion of metals depends on the temperature, the mechanical load of the friction parts, the sulphide contained in the lubricating material and its acid-resistant stability, the duration of contact with the medium, and the catalysis of the metal on the nitriding process. Corrosive etchants The rate of conversion of molecules to metals and so on.
1. Adjusting the corrosion of a valve is generally understood to regulate the damage to the metal material of the valve under the action of a chemical or electrochemical environment. Since corrosion occurs in the spontaneous interaction between the metal and the surrounding environment, how to isolate the metal from the surrounding environment or use more non-metallic synthetic materials has become a common concern.
2. It is well known that corrosion damage of metals has a considerable influence on the duration of action of the regulating valve, reliability and service life. The effect of mechanical and corrosive factors on the metal greatly increases the total amount of wear on the contact surface. Adjust the total amount of wear on the friction surface of the valve during operation. Adjusting the valve During operation, the frictional surface wears and breaks as a result of simultaneous mechanical action and chemical or electrochemical interaction of the metal with the environment. For regulating valves, the climatic conditions of the pipeline work are complicated; the appearance of hydrogen sulfide, carbon dioxide and some organic acids in the medium such as oil, natural gas and oil layer water increases the destructive force of the metal surface and thus quickly loses the working ability.