Flange Fixing Technology

  • Flange Fixing Technology
  • GRP Pipe Specialities
  • Flange Standards

A full face integral rubber flange design with backing flanges is available for types without, with single and multiple arch design. The rubber flange of the bellows is molded in an equal thickness to the flange diameter.

Full face rubber expansion joints are self-sealing. So an additional separate gasket is not required.

Explore Flange Fixing Technology

Flanges of glass reinforced epoxy piping (GRP) cannot withstand the required tightening torques of full-faced rubber expansion joint fixed to without cracking depending from design pressure and pipe standard. In order to avoid special measures on the GRP pipe flange ditec has developed a special sealing technology in the bellows rubber flange to lower the torques by approx. 50 %. This also eliminates the need for any grooves for O-rings in the GRP flange and the most economic flat face GRP flange can be applied.

GRP Flange Specialities

We can furnish all our expansion joint types meeting the following drilling/flange standards, among others.

  • DIN = Deutsches Institut für Normung
  • EN = European Norm
  • AWWA = American Water Works Association
  • ASME = American Society of Mechanical Engineers
  • API = American Petroleum Institute
  • MSS = Manufacturers Standardization Society
  • BS = British Standard
  • JIS = Japan Industrial Standard

For custom drilling or flange data not shown, please contact us.

Flange Standard Tables