The broad environment refers to the environment around the valve installation and the internal circulating medium; the narrow environment refers to the conditions around the valve installation.
Most environments cannot be controlled, and production processes cannot be arbitrarily changed. Methods of controlling the environment should only be used if the product, process, etc. are not compromised. Boiler water deoxidation, household alkali adjustment of PH value in oil refining process, etc. From this perspective, moderator, electrochemical protection, etc. are also control of corrosive environment. The atmosphere is full of dust, water vapor and smoke. Especially in the production environment, tobacco halogens, toxic gases and powders produced by the equipment will cause different degrees of corrosion in the valve operator, which requires regular cleaning, which is an effective measure to control environmental corrosion. Valve installation protective film, finger valve installation well, valve surface painting, etc. are all methods to prevent corrosive substances from eroding the valve.
Rising ambient temperature and air pollution accelerate corrosion, especially for equipment and valves in closed environments. Open factories or ventilation and cooling measures should be adopted as far as possible to alleviate environmental corrosion.
