What are different types of flanges?

Mar. 11, 2024

CHP Product Page

Flanges play a crucial role in connecting pipes, valves, and other equipment in various industries such as oil and gas, chemical, and water treatment. They come in different shapes and sizes, each designed for specific applications. In this article, we will explore the different types of flanges commonly used in industrial settings.

1. Weld Neck Flange.

Weld neck flanges are designed to be welded to the end of a pipe, providing a strong and durable connection. They feature a long neck that is welded to the pipe, allowing for easier alignment during welding. Weld neck flanges are ideal for high-pressure applications and are commonly used in industries where safety and reliability are paramount.

2. Slip-On Flange.

Slip-on flanges are easy to install and remove, making them a popular choice for applications where frequent maintenance is required. They have a slightly larger diameter than the pipe they are connecting to, allowing for easy alignment and welding. Slip-on flanges are used in low-pressure applications where quick disassembly is necessary.

3. Socket Weld Flange.

Socket weld flanges are similar to slip-on flanges but feature a socket that the pipe fits into before welding. This design provides added strength and stability, making socket weld flanges suitable for high-pressure applications. They are commonly used in industries such as petrochemical and oil and gas.

4. Lap Joint Flange.

Lap joint flanges are designed to slide over the end of a pipe and are then secured in place using a stub end. This allows for easy alignment and disassembly, making lap joint flanges ideal for applications where frequent maintenance is required. They are commonly used in industries such as food and beverage processing and pharmaceuticals.

5. Blind Flange.

Blind flanges are used to close off the end of a pipe or valve, providing a tight seal to prevent leaks. They are commonly used in applications where the end of a pipe needs to be closed temporarily or permanently. Blind flanges are available in various materials and sizes to suit different applications.

6. Threaded Flange.

Threaded flanges feature internal threads that allow for easy installation on pipes with external threads. They are commonly used in low-pressure applications where quick assembly and disassembly is necessary. Threaded flanges are ideal for applications where welding is not possible or desired.

7. Orifice Flange.

Orifice flanges are designed to hold an orifice plate, which is used to measure the flow rate of a fluid. They feature a concentric orifice bore that allows for accurate measurement of flow. Orifice flanges are commonly used in industries such as chemical processing, petrochemical, and power generation.

8. Spectacle Blind Flange.

Spectacle blind flanges are used to temporarily block off a pipe or valve, allowing for maintenance or repair work to be carried out. They feature a blind flange on one side and a spacer flange on the other, allowing for easy installation and removal. Spectacle blind flanges are commonly used in industries where safety and reliability are essential.

In conclusion, flanges come in various types and designs, each serving a specific purpose in industrial applications. Whether you need a strong and durable connection for high-pressure applications or a quick and easy solution for low-pressure systems, there is a flange available to meet your needs. By understanding the different types of flanges and their uses, you can choose the right one for your specific application and ensure a safe and reliable connection for your equipment.