all types of flanges
Below is a list of **flange categories** displayed in English:
1. **Weld Neck Flange**
2. **Slip-On Flange**
3. **Socket Weld Flange**
4. **Threaded Flange**
5. **Blind Flange**
6. **Lap Joint Flange**
7. **Orifice Flange**
8. **Spectacle Blind Flange**
9. **Long Neck Welding Flange**
10. **Expander Flange**
11. **Reducer Flange**
12. **Square Flange**
13. **Flat Face Flange**
14. **Raised Face Flange**
15. **Ring Type Joint Flange (RTJ)**
These categories are based on design, application, and connection methods. Each type serves specific purposes in piping systems.