What Is a Threaded Flange?

Threaded flange refers to a type of flange that is connected to the pipe by threads. When designing, it can be handled as loose flange. The advantage is that no welding is required, and the additional torque to the barrel or pipe when the flange is deformed is very small. The disadvantage is that the flange thickness is large and the cost is high. Suitable for connection of high-pressure pipelines. ^[1]

Threaded flange

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Threaded flange refers to a type of flange that is connected to the pipe by threads. When designing, it can be handled as loose flange. The advantage is that no welding is required, and the additional torque to the barrel or pipe when the flange is deformed is very small. The disadvantage is that the flange thickness is large and the cost is high. Suitable for connection of high-pressure pipelines. ^[1]

Threaded flange is a non-welded flange. The internal hole of the flange is processed into a pipe thread and matched with a threaded pipe. Compared with the flat welding flange or the butt welding flange, the threaded flange has the characteristics of convenient installation and maintenance, and can be used on some pipelines where welding is not allowed. Alloy steel flanges have sufficient strength, but are not easy to weld, or the welding performance is not good. Threaded flanges can also be selected. However, under the condition that the temperature of the pipeline changes sharply or the temperature is higher than 260 ° C and lower than -45 ° C, it is recommended not to use threaded flanges to avoid leakage.