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Rupture Discs & Bursting Discs

Features & Benefits
  • Non-fragmenting – protects process equipment from damage on activation
  • Fast acting – reacts in thousandths of a second for optimum protection
  • Micro-scored construction – ensures reliable operation at precise set pressure
  • Optimised design – ensures protection against accidental activation
  • Cost effective – sealed unit holders simplify installation and maintenance
  • Extensive range – available for all conditions including Sanitary, Hygienic and Cryogenic
  • Bespoke designs – multiple venting options in Forward , Reverse or Two-way acting format
  • Flexibility – wide range of materials, sizes, and set pressures for all operating conditions
  • Superior quality – designed and tested in Europe to ASME (US Engineering) standards
  • Excellent service – pre and post-sales technical support
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Bursting Disc Applications

Rupture Discs & Bursting Discs

The ASME and other pressure vessel codes allow the use of Bursting Discs in series with safety valves thus providing a wide range of benefits.

Bursting Disc selection

Not all Bursting Discs are suitable for installation below safety valves but modern disc technology allows a safe and versatile installation with useful side benefits.

It is important that any disc installed below a safety valve be a non-fragmenting design as fragments from a disc may:

  • Damage the valve and/or seat
  • Block the valve
  • Damage other downstream equipment
Reverse acting discs

Modern reverse acting discs can be manufactured as non-fragmenting designs and their wide burst pressure range, tolerance of high and cycling operating pressures and vacuum resistance make them ideal for installation in series with a safety valve for low and medium/high pressures. Installation of a reverse acting disc will allow in-situ check of calibration of the safety valve without disturbing the process side of the disc or other pipework. This can allow savings in dismantling of equipment and reduced plant downtime.

Standards Compliance

Elmac’s products comply with all relevant industry standards including ATEX & ISO 16852 (Flame Arresters); API2000/ISO28300 & NFPA30 (Venting & Storage of Combustible Vapours & Liquids) and possible BLEVE (fire engulfment) incidents. In addition, Elmac is accredited to the following international standards: ISO 9001 (Total Quality Management), ISO 14001 (Environmental Management) and OHSAS 18001 (Occupational Health & Safety).

Enviromental Management Quality Management EX CE
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