threaded steel flanges

　　The threaded steel flange is the flange of the inner hole was machined into the pipe thread processing, and with the supporting pipe to achieve the connection, is a non-welding flange. It is compared with the welding flange or welded flange, threaded flange is easy installation , some places can not be allowed welding of the pipeline. Alloy steel flanges have sufficient strength, but not easy to weld, or welding performance is not good, can also choose threaded flange. However, in the pipeline temperature changes rapidly or the temperature is higher than 260 ℃ below -45 ℃ conditions, it is recommended not to use threaded flange, so as to avoid leakage.