Stainless steel valves are usually used for work with certain corrosive media occasions, such as corrosive medium, food, medicine, oil, metals and radioactive liquid media and other chemical products in these areas, any kind of valve materials, the ability of resistance to corrosion of the working medium is relatively limited, and is affected by many factors. If the processing technology and the heat treatment process used in the manufacturing process are properly used, the corrosion resistance of this kind of material can be guaranteed. As for the concentration of >98% in the concentrated nitric acid medium, no matter what kind of heat treatment process, this kind of steel is not a corrosion resistance. Therefore, according to the nature of media work in the selection of ball valve, gate valve, globe valve and check valve valve material, various factors must study media concentration, temperature and heat treatment of materials and influence on corrosion resistance to choose better steel materials such as 316L, or 904 titanium valve.
With the continuous development of the petrochemical industry and the scale of petrochemical technology, stainless steel valves have become increasingly demanding, in addition to continue to improve the quality of conventional valves such as J41W stainless steel valve, stainless steel valve Z41W, especially Q41F stainless steel ball valve on the corrosion of materials demand more and more, such as ethylene plant, ethylene production the polyethylene and polypropylene device, PTA device in the production of chemical fiber (PTA), polyester polyester spinning device and device, therefore strive to develop corrosion technology, 316L stainless steel valve has corrosion resistance, high strength, lightweight, long life and other excellent features.
The society is in progress in the industry increased, to use stainless steel valve products also increased, new products and new industries will gradually replace the cast iron valves, new opportunities for market development prospects for the industry of stainless steel valve has good.