DonadonSDD offers DIF rupture discs that are specifically designed to protect atmospheric vessels and industrial plants from sudden overpressure and/or vacuum variations that can cause severe damage. The DIF rupture discs are consisting of 3 or more components parts that form a single unit disc that can be inserted directly between flanges.
Keyfeatures & technical benefits
High Certification Standards:
Our DIF rupture discs are certified to meet the highest international standards, including PED 2014/68/UE (CE STAMP), ATEX EX II 2 GD (CE STAMP), PER 2016 UK Statutory Instruments 2016 No 1105 (UKCA STAMP), and CU TR 032 (EAC STAMP).
Technique:
Composed of a slotted, perforated metal part, a seal membrane (usually in PTFE but available in various metallic or non-metallic materials), a protection section, and a calibration ring.
Easy Installation:
Designed to be installed in customer’s flanged coupling directly.
Applications:
Ideal for use with gas and liquids under static conditions and low pressure.
Non-Fragmenting:
Responds to excessive pressure with total opening in milliseconds without fragmentation of metallic layers.
Vacuum Resistance:
Specific support for vacuum and back-pressure protection are available on request.
Why Choose DonadonSDD?
- DonadonSDD DIF rupture discs are designed to be mounted between flanges, providing an easy and secure installation.
- The discs are ideal for use with gas and liquids under static conditions and low pressure, making them highly versatile.
- The discs respond rapidly to excessive pressure, preventing damage to your plant.
- Double way disc option: Protects against vacuum and pressure simultaneously (even with two different set pressures).


