Electron-beam welded assembly (OE6)

Electron-beam welded assembly (OE6)

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High-performance electron-beam

welded disc and plug assembly

The OE6 rupture disc assembly combines a scored forward or reverse rupture disc that is electron-beam welded between the inlet and outlet sections of a plug.

This high-performance component can withstand extremely high and low temperatures and offers a full vacuum service.

The optional baffle outlets provide controlled venting, making the unit particularly suitable for harsh operating environments.

Typically manufactured as a stainless-steel body with a stainless steel or nickel disc, OE6 is available with a wide range of inlet and outlet configurations for full customisation.



Key features

  • High integrity, fail-safe component
  • Can withstand extremely low and high temperatures
  • Operates well at very high pressures and in full vacuum
  • Leak rate of 1×10-8 cc/sec
  • Simple to install
  • Zero-maintenance design
  • Non-fragmenting designs available
  • Some units are available with our OE-Tel burst detection system


Technical downloads (OE6)

Technical information
Installation guide


Contact Elfab about this product
Standard Part Code Disc Sizes* 15mm, 19mm, 25mm, 40mm
Standard Thread Sizes available* 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″
Standard Inlet Thread types available * NPT, BSPT, BSPP (Male or Female) – Baffle or Through
Standard Outlet Thread types available* NPT, BSPT, BSPP (Male or Female) – Baffle or Through
Standard Burst Pressure Range 1barg – 250barg (14.5psig – 3625psig)
Standard Temperature Range -70C (-94F) – 400C (752F)
Maximum Operating Ratio 90% of minimum burst pressure (2.5barg – 200barg)

(Reverse Acting)

85% of minimum burst pressure (55barg – 200barg)

(Forward Acting)

Performance Tolerance +/- 5% Reverse Acting Disc

+/- 5% Forward Acting Disc

Leak Rate Electron Beam Welded 1×10-8 mbar.l/sec (Helium)
Vacuum Service Yes
Fluid Compatibility Gas, Vapour (Liquid – Forward Disc Only)
Tamper proof Yes
Disc Type Forward or Reverse Acting Disc
Disc Material* Nickel, Stainless Steel
Fragmentation May Fragment depending on design
Disc Connection to Body Electron Beam Welded Stainless Steel
Maximum Torque Size dependent

(* Others available on request)