Donadon SDD awarded the US PATENT for the manufacturing method

30.05.2014

Donadon SDD, manufacturer of rupture discs, have been awarded the US patent for the manufacturing method of NS NANOSCORED rupture discs

Donadon SDD, manufacturer of rupture discs, have been awarded the US patent for the manufacturing method of NS NANOSCORED  rupture discs. NS NANOSCORED  is also a registered trademark.

The new NS NANOSCORED patented technology is fully laser-based and allows  Donadon SDD to be the first to offer a single layer metal bursting disc at a very low burst pressure using metal sheets of very low thickness, in practice with every thickness  industrially available,  ensuring at the same time strict tolerance, absolute reproducibility, complete design flexibility and fast delivery time.

Very important for many applications is the availability of vacuum resistant rupture discs with rupture pressure minor than 0,5 barg (7 psig) (non-PED applications). This properties can be achieved for diameters down to 1” ½ (DN 40).

The NS  NANOSCORED Donadon SCD (forward acting) and SCR (reverse buckling) discs with micro-scored sectors – six or more sectors compared to the usual four – offer advantages including more complete opening and reduced risk of petal detachment, even at very high burst pressures.

These rupture disc models are especially suited for protection of pressure relief valves and offer good resistance to corrosion and high temperatures. 

At the same time NS NanoScored rupture discs are very well suited for application in Pharmaceutical, Food and Biotech industries, for plants with Clean In Place and Steam In Place technology and productions according to Good Manufacturing Practices.  Donadon NS rupture discs can be installed in Clamp connections  and are completely made of Stainless Steel or other alloys according to customer specifications.

All products are tested in compliance with the Pressure Equipment Directive and ATEX, and the company is certified to ISO 9001:2008. Donadon SDD is also approved to the KTA 1401 standard as a supplier of rupture discs to nuclear power plants.