Opti-Gard™ High Strength Magnet (DSC-OPM)

Opti-Gard™ High Strength Magnet (DSC-OPM)

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Opti-Gard High Strength Magnet for use with Duplex Holders

Best high performance reverse acting rupture disc for use with Duplex Holders

Opti-Gard™ High Strength Magnet is a technically advanced reverse acting rupture disc solution specifically designed for use in applications where Duplex Holders are required. The Opti-Gard High Strength Magnet (OPM) is available across a wide range of sizes, materials, burst pressures and process conditions. OPM has been specifically designed for use with duplex holders available in 22cr and 25cr.

Opti-Gard High Strength Magnet offers a unique range of benefits

Peripherally scored on the vent-side for accurate burst control, Opti-Gard benefits from a unique 3% tolerance with a 95%* operating to burst pressure ratio. With these industry-leading technical characteristics Opti-Gard can reduce stock holdings by as much as 65%! This offers significant cost savings as well as a reduced inventory and installation variance, while not affecting quality.

Full vacuum capability

Opti-Gard High Strength Magnet is a solid metal bursting disc with smooth surface finish, a non-fragmenting design and an optional add-on of a process side fluoropolymer liner. Available in Stainless Steel and Hastelloy, as well as more exotic materials like Tantalum, Monel and Inconel, Elfab can manufacture the OPM for use in applications operating up to 140°c. Withstanding full vacuum and high levels of back pressure without the need of an additional vacuum support ensures maximum free flow area on burst.

Accurate signalling with unique non-invasive detection system

Opti-Gard is installed into Elfab’s reverse-acting, raised face rupture disc holders and fitted with a high strength magnet as standard to allow for use of Elfab’s unique, reusable, non-invasive burst detection system Flo-Tel™+OPM is fitted with a strenuous magnet specifically designed for use with duplex holders to give accurate signalling with Elfab’s unique detection system Flo-Tel; which is a cost saving and reusable method. As the only ATEX, IECEx or XD approved detection system on the market, Flo-Tel has been offering significant cost savings to customers for almost 20 years. While Elfab’s rupture disc holders are available in a wide range of materials, the OPM design is specifically made for 22cr and 25cr Duplex.

Leading the industry in advanced quality performance

Elfab pride themselves in offering the highest level of quality and are accredited to a number of leading industry standards. Elfab’s rupture discs can be manufactured to ISO 4126 or ASME VIII dependent on customers’ requirements. When used in combination, Elfab’s rupture discs and detection systems can offer industry leading SIL ratings to offer customers increased safety information. Please contact our technically trained sales engineers for more information.

  • Industry leading 3% tolerance, up to 97*% operating ratio
  • For use with Duplex Holders (22cr and 25cr)
  • Manufactured to ISO4126 or ASME VIII (UD stamp available)
  • Available with or without process side liner
  • Available in a wide range of materials
  • Tested to a million life cycles
  • Non-fragmenting bursting disc design
  • Full vacuum capability without additional vacuum support
  • Suitable for liquid, gas and vapour applications
  • Withstands high levels of back pressure
  • Best Free Flow Area capability irrelevant of process conditions
  • Smooth surface finish
  • Compatible with reusable detection systems Flo-Tel™ and Flo-Tel™ xd up to 140°c

 

*97% operating ratio may be available under certain operating conditions. Please contact your Elfab sales representative for further details or to request a quote.

 

Contact Elfab about this product
Size Range 50mm to 600mm (2” to 24”)
Burst Pressure Range 0.9 BarG to 60 BarG (13 PsiG to 870 PsiG)
Temperature Range Maximum 140°C when used in conjunction with Flo-Tel™ detection
Maximum Operating Ratio 95% of minimum burst pressure (92% of nominal burst pressure)
Fragmentation on Burst None fragmenting design
Relief Valve Isolation Excellent
Vacuum Service Full Vacuum
Fluid Compatibility Liquid, Gas or Vapour
KR Values N/A
Torque Sensitive No
Cycle Life Tested to over 100,000 pressure vacuum cycles*
Material Range Full range for disc suitable with CR 25 Duplex Holder only
Reversal Ratio N/A with offset tag + system-loc
Damage Ratio <1 Fail Safe
Leak Tightness Excellent
Performance Tolerance +/- 3% (zero manufacturing design range)
Protective Linings Available on vent side
Disc Surface Finish N/A

(* from full vacuum to 95% of the minimum burst pressure)

These are just a few example applications from the Oil and Gas sector.

Contact us to find out how Opti-Gard High Strength Magnet can be used in your application