@Mammmood - The key thing to remember is that it’s an oxidation process. So you would have to prevent the oxidation somehow. I don’t think putting a “liner” solution would do that.
What causes oxidation? Think of your car. If you get rust, that’s oxidation. So why do cars rust? They rust because of oxygen and water coming into contact with the metal. If you keep the car dry and not exposed to extreme weather conditions you can limit exposure to oxidation.
Can you accomplish the same results in a valve plant? I think you would be limited, as the equipment is outdoors and you will get moisture of course. The best thing to do is to make sure that the valves are clean and inspected from time to time.