What are the types of forged flanges?

Forged flanges come in various types, including blind, flat, weld neck, threaded, socket weld, and long welding neck. Each type has its unique features and applications.

1. Blind Flanges Blind flanges are used to close off one end of a pipeline for cleaning, inspection or repair. They consist of a flat plate welded onto a circular ring and are secured using bolts like other types of flanges.
2. Flat Flanges Flat flanges, also known as plate flanges, are commonly used to connect the last section of a pipe system. They are easy to install and remove, making them an ideal option for some low-pressure systems.
3. Weld Neck Flanges Weld neck flanges have a beveled edge that allows them to be welded to the tip of the pipe. They are commonly used in high-pressure and high-temperature applications, such as in oil and gas exploration.
4. Threaded Flanges Threaded flanges are bolted onto one end of the pipe using an internal threaded hole. They are typically used in low-pressure systems.
5. Socket Weld Flanges Socket weld flanges have an insert that fits into the pipe and is held in place using bolts. They are often used for connecting smaller valves to pipelines.
6. Long Welding Neck Flanges Long welding neck flanges have a long welding port that allows them to tightly connect two pipes. They are commonly used in high-pressure and high-temperature applications.

In practical use, different types of forged flanges are chosen based on the specific needs of the industry. For examples in production, a water treatment equipment manufacturer may require 300 10-inch, 150LB, KCF-type flat flanges made of high-quality carbon steel, while a power company may need 1000 threaded flanges of 3 inches, 300LB, made of alloy steel for their pipelines. These flanges must be produced according to relevant standards to ensure their safety and stability during use.

Overall, understanding the characteristics and applications of different types of forged flanges can help users select the most suitable product and ensure the normal operation of their pipeline systems.