NS nanoscored rupture discs for high-performance pressure safety
Nanoscored rupture discs engineered for precise burst pressure control in critical industrial pressure safety applications.
DonadonSDD NS NanoScored series rupture disks

DonadonSDD introduces the new NS NanoScored series Burst Discs, a further development of its breakthrough technology. DonadonSDD has also been awarded both a US patent and an Italian for the innovative NS NanoScored rupture disc manufacturing method.
NS NanoScored series rupture discs are fully metallic and adequate for all applications. The NS Nanoscored rupture disc series includes tension rupture discs (forward acting) like SCD discs and compression discs (reverse buckling) like SCR discs (petals) or Y90 and KRD (opening on circumference).
The new manufacturing technology developed by DonadonSDD allows for rupture discs as follows:
- Fully metallic (Stainless steel, Nickel, Inconel, Monel, Hastelloy, Titanium, Tantalum)
- Full range of diameters from DN 1/2” (15) to DN 36” (900)
- Absolute reproducibility given that there is no deterioration of tools
- Resistance to fragmentation even for high rupture pressures
- Resistance to absolute vacuums without need for supports
- Characterised by full design flexibility
- For bursting pressures below 0.5 bar g (7 psi g) also for DN 1”1/2(40)
- High accuracy at all rupture pressures
- Reduced rupture tolerance according to customer requirements
- Suitable for insertion in standard or sanitary (Tri-clamp) disc holders
The new manufacturing technology developed by DonadonSDD allows for the manufacturing of scored rupture disks also with very low thickness materials (basically with every industrially available thickness), ensuring high reliability and strict tolerance. It is therefore possible to extend the range of bursting pressure available to lower bursting pressure than normally available.
Contact us today for more information regarding our Ns Nanoscored 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.
CERTIFICATIONS
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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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