Rupture Disc Holder IG-KUB-PTU

The IG-KUB®-PTU rupture disc holder is a flat-seat holder for reverse acting rupture discs IKB® and KUB®. The unique design of the IG-KUB®-PTU rupture disc holder always guarantees the proper insertion, and enables the pre-assembly of the rupture disc. This avoids damaging the rupture disc, which can then be reused after dismantling, for example, within the scope of an inspection.

The sealing edge of the seat surface ensures a leak-free sealing through a fully metallic clamping. The inside diameter of the rupture disc holder outlet performs a support function and guarantees the optimal opening behavior when the defined burst pressure is reached. The integrated pre-assembly bolts allow an easy and safe installation of the rupture disc. The holder can be used for a wide range of flanges and various pressure classes.


  • Separators, autoclaves, chemical reactors, distillation towers, desalination plants, flare stacks, FPSOs, gas-tight pressure vessels, gas compressor modules, gas turbines for power generation
  • Hazardous goods containers, geothermal energy, intermodal containers for corrosive/ aggressive media, isolation of safety valves, condensers, power plants, cryogenic applications, cryostats + transport containers, LDPE (thermoplastic)
  • Food production, mixers, oil and gas separation and treatment, petrochemical plants, process vessels, refineries, reactors, spray dryers, sterile tanks, aseptic tanks, reverse osmosis systems, heat exchangers



  • Breweries
  • Chemical- petrochemical
  • Food
  • Oil and gas industry
  • Aerospace
  • Pharmaceutical industry
  • LNG


  • Pre-assembly of the rupture disc for robust and safe handling with a defined torque.
  • Multi-flange design, suitable for different pressure classes and flange systems.
  • High degree of leak-tightness through a full-metal sealing.
  • Available in a wide range of materials.
  • Designs for different pressure ranges and companion flange types.
  • Connection option for monitoring and excess flow valve units.
  • Reusable holder.
  • Metal-to-metal sealing.

Standard Materials:

  • Stainless steel
  • 316
  • 316L
  • 316Ti
  • 904L
  • Hastelloy C
  • Titanium
  • Nickel
  • Inconel