Custom industrial rupture discs for pressure safety
Precision-engineered rupture discs designed and manufactured for a wide range of industrial pressure protection applications, fully Made in Italy with PED 2014/68/EU compliance and ASME Section XIII available.
Why Choose Donadon Rupture Discs?
DonadonSDD, now part of Baker Hughes, is an Italian manufacturer of custom rupture discs (also known as burst discs or bursting discs) serving industrial pressure safety applications worldwide. With 70 years of engineering expertise and projects delivered across more than 100 countries, the company has chosen rupture discs as its flagship product, developing the most comprehensive range of variants and engineering tailored designs for each client’s specific operating conditions. Our manufacturing capabilities serve over 10 industrial sectors, from hydrogen and oil & gas to pharmaceutical, biogas and chemical processing.
DonadonSDD continuously invests in new manufacturing technologies and particularly in rupture disc production through a fully laser- based process. The laser manufacturing process is a patented innovation, granted by the European Patent Office in May 2019, that has positioned DonadonSDD at the forefront of global rupture disc technology.
DonadonSDD designs and manufactures custom rupture discs for pressure applications, compliant with the European PED Directive 2014/68/EU and available, where applicable, with ASME BPVC Section XIII certification/marking for overpressure protection devices. Additional certifications and compliance include EAC — TR CU 032/2013 for pressure equipment and 3-A Sanitary Standard 60-01 for sanitary applications. ATEX 2014/34/EU is available where applicable.
DonadonSDD Rupture discs have many advantages:
- Fully Made in Italy — 100% Italian design, engineering, and manufacturing with full European quality controls and on-site testing facilities.
- They are fast to manufacture thanks to our patented technology.
- They are often the most economical solution with respect to other types of pressure relief devices (especially when it is necessary to utilise particularly expensive materials or to ensure high discharge areas).
- They are available in a wide range of sizes, materials and calibration pressures.
- They have low maintenance costs.
- They have no components in relative motion to each other and therefore guarantee faster intervention times than other pressure relief safety devices.
- They ensure an excellent level of system sealing, thus helping to reduce the risk of fugitive emissions of toxic, dangerous or precious substances.
- They make it possible to isolate the safety valve from contact with corrosive or fouling fluids.
Our Rupture Discs
Here are the categories of rupture & bursting disks and accessories which we manufacture for our customers:
- NS NANOSCORED RUPTURE DISCS – a unique, top-performing product.
- SANITARY RUPTURE DISCS – for pharmaceutical, food and biotech industries.
- FORWARD ACTING – the traditional, time-tested solution.
- REVERSE ACTING – sporting better resistance to different operating pressures.
- ULTRA LOW PRESSURE RUPTURE DISCS – sensitive to even the lightest pressures.
- DOUBLE WAY – protects both ways: against pressure and vacuum.
- GRAPHITE RUPTURE DISCS – for aggressive fluids.
- SEALED UNIT – simple and quick to install.
- RUPTURE DISC HOLDERS – specific disc holders for every model.
- SPECIAL EXECUTIONS – non-standard specifications and materials for every possible need.
- ASME APPROVED RUPTURE DISCS – approved according to the exacting ASME standards.
- ACCESSORIES
- RST – the streaming system that lets you enter the specially equipped DonadonSDD test
Contact us today for more information regarding our rupture & burst discs!
Technical specifications
Pressure range
From 5 mbar (ultra-low pressure tank protection) to 1150 bar (high-pressure process applications), calibrated to customer-defined burst pressure.
Sizes
From 1/8′′ (3 mm) up to DN 40′′ (1000 mm), covering pilot-scale equipment, standard process lines and large vent applications.
Operating temperature
Validated through testing facilities from -196°C (cryogenic applications) up to 600°C (high-temperature processes).
Materials
Corrosion-resistant metals: stainless steel 316L, Hastelloy, Inconel, Monel, Titanium, nickel alloys, tantalum, and graphite for aggressive fluid services.
Standards
ASME BPVC Section XIII, PED 2014/68/EU, EAC — TR CU 032/2013, 3-A Sanitary Standard 60-01. ATEX 2014/34/EU available where applicable.
Every rupture disc is engineered to the customer’s specific operating conditions.
CERTIFICATIONS
Our reliability
What is a Rupture Disc? How Does a Burst Disk Work?
A rupture disc, also known as a burst disc or bursting disc, is a non-reclosing pressure relief device that opens at a predetermined burst pressure to protect industrial equipment from overpressure events. It consists of a thin membrane designed to fail in a controlled way, releasing excess pressure safely and instantaneously. For a complete explanation of working principles, types and applications, read the complete guide to rupture discs.
Frequently Asked Questions
Depending on disc’s type, DonadonSDD can supply discs from 1/8” (3mm) up to 40” (1000mm) in diameter.
You can download here the RUPTURE DISC FORM that will guide You to collect all the data required, which can be also summarized as below specified:
- required burst pressure & burst temperature
- nominal size, flange rating & face finishing
- disc and holder material
- vacuum resistance (if requested)
- Pressure Safety Valve protection (if requested)
There are several other factors as well, so DonadonSDD specialists are always at disposal to specify the correct disc for any application. Each and every rupture disc we design and deliver to our customers is scrupulously custom-built, so as to match the industrial plant’s specific and unique needs.
Main Families: Forward / Reverse / Sanitary
The categories of rupture & bursting disks which we manufacture for our customers, are:
- NS NANOSCORED RUPTURE DISCS – a unique, top-performing product.
- SANITARY RUPTURE DISCS – for pharmaceutical, food and biotech industries.
- FORWARD ACTING – the traditional, time-tested solution.
- REVERSE ACTING – sporting better resistance to different operating pressures.
- ULTRA LOW PRESSURE RUPTURE DISCS – sensitive to even the lightest pressures.
- DOUBLE WAY – protects both ways: against pressure and vacuum.
- GRAPHITE RUPTURE DISCS – for aggressive fluids.
- SEALED UNIT – simple and quick to install.
Looking for more detailed answers? Read our complete guide to rupture discs for in-depth explanations on working principles, materials, applications and selection criteria.
Get in touch
Safety devices such as rupture discs and explosion venting panels are essential for modern, efficient industrial plants.
Let’s find out together which ones are ideal for you!
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