Pipe flange used in e.g. chemical plant, has screws that are inserted into through-holes of plastic flange portions, to connect flange portions with counter-element under force application of sealing ring

摘要

The flange has sealing ring (3) which is arranged between plastic flange portions (2a,2b) and counter-element. The screws (4) are inserted into through-holes (5) of plastic flange portions to connect flange with counter-element under force application of sealing ring. A supporting surface (10) of flange portions is provided facing seal surface (1) of supporting ring (9). The plastic flange and counter-element are drawn with respect supporting ring, so as to seal plastic flange portions.