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Threaded flange is a kind of flange that USES thread to connect with pipe. Loose flange can be used in design. The advantage is that there is no need for welding, and the additional torque to the cylinder or pipe is very small when the flange is deformed. The disadvantage is that the flange thickness is large and the cost is high. Suitable for high pressure pipe connection.

The threaded flange is a non-welded flange that processes the inner hole of the flange into pipe threads and is connected with the threaded pipe. Compared with welded flanges or butt flanges, threaded flanges are easy to install and maintain. Alloy steel flange has enough strength, but not easy to weld, or poor welding performance, you can also choose threaded flange. But in the pipe temperature changes or sharply temperature higher than 260 ℃ below - 45 ℃ under the condition of threaded flanges are not recommended, so as to avoid leakage