Total peace of mind for cathodic protection:


Reliable, durable insulating flanges are important for long-lasting cathodic protection (CP) in pipeline and plant engineering. ISOflanges has access to several patents for innovative technical developments in these fields.

Insulating flanges from ISOflanges have many successful applications in many areas:

  • Energy suppliers
  • Natural gas and petroleum industry
  • CP specialists
  • Water supply
  • Industrial organisations

Our high-quality insulating flanges guarantee that cathodic protection systems in pipeline and plant engineering applications work unimpeded. Of course, our performance is thoroughly documented (inspection certificates, operating instructions, technical drawings etc.).

  • Adaptations to meet changing regulations
  • Development of materials manufactured especially for ISOflanges
  • Customised designs for your individual application
  • Other accessories for cathodic protection
  • DVGW certification
  • Pressure Equipment Directive (PED)
  • Industrial Emissions Directive (IED)
  • Technical Rules for Pipelines (TRFL)
  • HTB certificate
    DIN EN 1775
  • Regulatory conformity acc.
    DIN 30690-1
    bis PN16: G462
    ab PN16: G463
  • Acceptance requirements
    to PN16: DIN EN 12007-3
    from PN16: DIN EN 1594

  • Technically tight in the long term
  • Mechanically maintenance-free
  • Use of high-quality materials – highest possible screw tension
  • Pressure resistant
  • Operationally reliable – secure insulation
  • Tested – verification of the material properties with inspection certificate 3.1 or 3.2 in accordance with EN 10204
  • Climate-friendly – lowest possible leakage
  • Very resistant to mechanical stress – thanks to strong geometry
  • Certified – TRFL approval of finished parts, DIN 30690-1, G 24, G 463, DIN EN 1594
  • Dplus and D series