Threaded Flanges made in China Thread flange is a kind of flange connected with pipe by thread. When designing, it can be treated as loose flange. The advantage is that welding is not required, and the additional torque to the cylinder or pipe is very small when flange is deformed. The disadvantage is that the flange is thick and the cost is high. Suitable for connection of high pressure pipeline.Threaded Flanges made in China website:http://www.gcflange.com/threaded-flanges/