1, sealing mode: the core of the high-pressure self-tightening flange is the perfect, metal to metal new seal, that is, rely on the elastic deformation of the sealing lip of the sealing ring (T-arm) to form a seal, belongs to the hard seal; Then the combination of sleeve section, clip sleeve and seal ring formed a strong rigid body, so that the strength of the connecting part is far greater than the strength of the pipeline base material itself. In the compression, the rib and lip respectively play the role of strength and sealing, not only can be tightly sealed, but also can strengthen the pipeline, greatly strengthen the overall strength of the connection part

2. Tensile resistance: in most cases, the high-pressure self-tightening flange in the connection can withstand tensile load better than the pipeline itself; The destructive test proves that the flange remains intact without leakage after the failure of the pipe under tensile load.

3, bending resistance: a large number of tests show that the flange under large bending load, still will not leak or loose, the actual test: DN15 specifications of high pressure self-tightening flange welding on the pipeline through many cold bending, high pressure self-tightening flange connection does not leak, and the bolt is not loose.

4. Compressive resistance: in normal pipeline applications, high-pressure self-tightening flanges will not bear overload compression; When higher compression loads occur, the high load on the high pressure self-tightening flange is determined by the ultimate strength of the pipe. Advantages of high pressure flange