Rupture discs and Explosion venting panels
38Pages

{{requestButtons}}

Catalog excerpts

Rupture discs and Explosion venting panels - 1

RUPTURE DISCS NOW BEAR THE MATCHING UD STAMP! Rupture discs certified in accordance with ASME VIII Dischi di rottura certificati secondo la direttiva ASME VIII Berstscheiben gemäß der ASME richtlinie VIII Discos de ruptura certifican según la directiva ASME VIII Discos de ruptura certificados de acordo com a Diretiva ASME VIII Disques de rupture testés et certifiés conformes à la directive ASME VIII РАЗРЫВНЫЕ МЕМБРАНЫ сертифицированы в соответствии с директивой ASME Раздел VIII Certified for protection of equipment under pressure according to European Directive 97/23/CE (PED) Certified EX II 2 GD for use in potentially explosive atmospheres according to European Directive 94/9/CE (ATEX) Certified on behalf of the German nuclear power plant operators Certified for protection E.ON Kernkraft GmbH Certified EX II 2 GD for use in of equipment under pressure according to European Directive 97/23/CE (PED) potentially explosive atmospheres according to European Directive 94/9/CE (ATEX)

Open the catalog to page 1
Rupture discs and Explosion venting panels - 2

SAFETY % aeCSANDOMCm^^^^H 1. Donadon SDD Presentation page 3 2. Safety devices: "Rupture discs" page 6 3. NS NanoScored series rupture discs page 9 • KRD Reverse circumference micro-scored rupture discs page 10 • SCR Reverse micro-scored rupture discs page 11 • Y90 Reverse circumference micro-scored rupture discs page 12 • SCD Micro-scored forward acting rupture discs page 13 4. Rupture discs for sanitary applications page 14 5. Forward acting rupture discs • STD Solid rupture discs page 15 • DCD Composite rupture discs page 16 6. Rupture discs for low pressures • LPD Rupture discs complete...

Open the catalog to page 2
Rupture discs and Explosion venting panels - 3

Donadon SDD Rupture discs and Venting panels are the main products of Donadon Safety Discs and Devices Srl (“Donadon SDD”) the absolute specialist with more than 60 years of experience in manufacturing Rupture Discs. The range of safety devices for protection of equipment from pressure variations manufactured by Donadon SDD includes:  Rupture Discs in Stainless steel, special alloys, Nickel, Titanium, ,Tantalum, and graphite;  Venting panels for protection of plants with explosion risk;  Rupture indicators also for explosion atmosphere applications;  Donadon SDD supply also a wide range...

Open the catalog to page 3
Rupture discs and Explosion venting panels - 4

Donadon SDD has also invested in new up to date manufacturing equipment and modern development and measurement tools like Solidworks drawing equipment and an OGP microscope able to measure and take picture with 1 micron definition. Rupture pressure of discs may vary from 5 millibar up to 1150 bar, taking also into account size and material. Testing equipment allow to certify discs up to DN 900 and to perform testing both at low temperature (down to -196°C) and at high temperature (up to 480°C). Organization and procedures are designed to ensure reliable manufacturing of high quality...

Open the catalog to page 4
Rupture discs and Explosion venting panels - 5

Key advantages of Donadon SDD Rupture discs Custom manufacturing according to client specification – Zero manufacturing range High precision, computer controlled laser manufacturing Low tolerance also for low bursting pressure 2 – 3 weeks standard delivery Rush spare parts deliveries in a few days Full range of diameters and burst pressures Worldwide deliveries Competitive pricing Technical Service Model selection for Rupture discs, Explosion vent panels and Rupture indicators Donadon SDD technical service, taking into account customer’s requirements, develops the best technical solution...

Open the catalog to page 5
Rupture discs and Explosion venting panels - 6

Rupture Discs as Safety Devices Chemical plants, tanks, reactors, silos and any other equipment working under pressure may be damaged or destroyed by non-controlled pressure rises. Protection of personnel and equipment from this risk is achieved with safety devices that provide an adequate fluid outlet, venting the excess pressure. In the same way protection from depression is achieved. Rupture discs and relief valves are the safety devices used more frequently. Their design and performance are widely different but both types protect the equipment from high pressure. The rupture disc (or...

Open the catalog to page 6
Rupture discs and Explosion venting panels - 7

Rupture discs and Pressure safety valves Rupture discs and safety valves may be used independently as primary safety devices or in Main properties of the two devices are compared in the following table Mounting position Behaviour when overpressure ceases Does it give protection from overpressure Does it give protection fromvacuum Periodical check of calibration Is it possible to change calibration Calibration lower than 0.1 bar Calibration higher than 500 bar Leaks during operation RUPTURE DISC SAFETYVALVE Simple Mechanical Any position Only vertical It does not re-close the disc must be...

Open the catalog to page 7
Rupture discs and Explosion venting panels - 8

Rupture disc models Rupture discs belong to 3 families:  Metal - Conventional or forward acting - Compression or reverse acting  Disc selection depends from exercise conditions of the equipment to be protected:  Conventional discs have a flat or concave surface exposed to the pressure. Bursting happens when the pressure (or depression) overcomes the mechanical resistance of the material, after having gradually increased the camper of the disc.  Reverse acting discs have a convex surface exposed to the pressure. The shape of the disc does not change until the pressure reaches the...

Open the catalog to page 8
Rupture discs and Explosion venting panels - 9

DONADON SDD NS NanoScored series rupture discs Donadon SDD introduces the new NS NanoScored series rupture discs, a further development of its breakthrough technology. Donadon SDD has also been awarded both a US patent and an Italian for the innovative NS NanoScored rupture disc manufacturing method. (petals) or Y90 and KRD (opening on circumference). 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...

Open the catalog to page 9
Rupture discs and Explosion venting panels - 10

DONADON SDD KRD rupture discs The Donadon SDD KRD rupture discs obtained with NS Nanoscored technology are compression or reverse circumference micro-scored discs. KRD discs make use of the latest sector technology: the camber of the convex disc is not modified by the operating pressure except on reaching reverse pressure. This device works with ratios of up to 95% between operating and rupture pressure and withstands thousands of cycles without jeopardising its reliability. At the moment of reversion, the disc ruptures in a few thousandths of a second along the scored line without...

Open the catalog to page 10

All Donadon SDD catalogs and technical brochures

  1. Safety Valves

    24 Pages