API 602 Forged B381 Gr. F-2 Titanium Globe Valve
Titanium is the main material of titanium alloy valves. It is a highly chemically active metal. It exhibits particularly excellent corrosion resistance to many corrosive media. Titanium and oxygen easily form a strong and dense passive oxide film on their surface. In many harsh corrosive media, this layer of oxide film is very stable and difficult to dissolve. Even if it is damaged, as long as there is sufficient oxygen, it can repair itself and quickly regenerate.
The titanium metal material of titanium valves has good stability and self passivation ability when oxidized into thin films in highly corrosive environments. Its characteristic can resist strong corrosion under various harsh working conditions. Titanium valves rely on the chemical stability of the passive oxide film on their surface in corrosive media to resist corrosion in the working environment. For neutral, oxidizing, and weakly reducing media environments, the passive oxide film itself has good stability. For reducing corrosive media with high temperatures or low pH values, in order to improve the stability of their passive oxide film, corrosion inhibitors such as air, water, heavy metal ions, and anions can be added, and surface ion modification and anodizing treatment can be used to improve the corrosion resistance and surface hardness of titanium in reducing media.
Range
Standards
Additional Features
Forged B381 Gr. F-2 globe valve is a commonly used high-pressure valve, mainly used to control the opening or closing of fluid and regulate the flow size of fluid. It is made of forged steel and has high strength and corrosion resistance. The main characteristics of forged steel globe valves include:
Materials of Main Components
NO. | Part Name | Material |
1 | Body | B381 Gr.F-2 |
2 | Disc | B381 Gr.F-2 |
3 | Stem | B381 Gr.F-2 |
4 | Gasket | Titanium+Graphite |
5 | Bonnet | B381 Gr.F-2 |
6 | Hex.bolt | A193 B8M |
7 | Packing | Graphite/PTFE |
8 | Gland Bushing | B381 Gr.F-2 |
9 | Gland Flange | B381 Gr.F-2 |
10 | Gland Nut | A194 8M |
11 | Gland Eyebolt | A193 B8M |
12 | Yoke Nut | A194 8M |
13 | Handwheel | A197 |
14 | Washer | S.S |
Applications
Titanium and titanium alloys have outstanding advantages such as light weight, high strength, corrosion resistance, and good pressure resistance. They are widely used in industries such as aviation, aerospace development, marine engineering, petroleum, chemical, light industry, food processing, metallurgy, electricity, medicine and health, and instrumentation. Titanium also has excellent resistance to seawater corrosion and erosion, and is widely used in ships, coastal power plants, and seawater desalination.