One time use unit with industry best lead times

OE2 is a capped disc and plug design using conventional rupture discs, either flat or domed. The unit plug is typically made from brass with a nickel disc although other materials are available on request. OE2 is designed to prevent over pressurisation in numerous applications.

Elfab’s fully automated production lines are capable of rapidly producing large volumes of capped rupture disc assemblies in a wide variety of sizes, designs and burst pressures, allowing us to manufacture this product range on some of the best lead times in the industry.

Available with various inlet and outlet thread combinations for ease of installation, the OE2 is a cost-effective solution for your overpressure requirements.

Low maintenance solution for a wide range of applications

OE2 assemblies can be used in a variety of industries and in many different application from aerospace to fire protection.

The advantage of OE2 rupture disc assemblies is the high operational performance and good leak tightness (10-4 cc/sec)* coupled with the zero maintenance design.

Elfab have offered high integrity, high performance OEM pressure relief solutions to its customers, for over 40 years. Elfab’s OE2 device is available in a range of standard sizes and thread configurations. Alternatively, unique custom engineered solutions can be manufactured in line with our customers’ particular design brief.

Unique benefits

– Cost effective solution
– Available with flat/conventional rupture discs
– Offers reliable performance and controlled venting
– Maintenance free solution
– Leak tightness 10-4 mbar.l/sec*
– Full vacuum service
– Tamperproof
– 4-6 weeks lead time

To view technical specifications for standard product, see product downloads. Alternatively, refer to our customised products OEM page or contact your sales engineer for alternative configurations.


*design dependent
Contact Elfab about this product
Standard Part Code Disc Sizes* 6mm, 8mm, 10mm, 11mm
Standard Thread Sizes available* M12, M14, M16, M18
Standard Thread Types available* Inlet: M12, M14, M16, M18

Outlet: Through or Baffle

Standard Burst Pressure Range 25barg – 200barg (360 psig – 2900 psig)
Standard Temperature Range -70C – +200C (-94F – +392F)
Maximum Operating Ratio 85% of minimum burst pressure (55barg – 200barg)

(Forward Acting)

Performance Tolerance +/- 5% (Forward Acting Disc)
Leak Rate 1×10-⁴mbar.l/sec**
Vacuum Service Yes
Fluid Compatibility Gas, Vapour or Liquid
Disc Type Conventional (Forward Acting)
Disc Material* Nickel, Stainless Steel, Copper, Monel
Fragmentation May Fragment depending on design
Disc Connection to Body Capped Brass (with/without copper seal)

(* Others available on request)

**design dependent