Sanitary Rupture Discs | DonadonSDD | Philippopoulos s.a.
Sanitary Rupture Discs | DonadonSDD | Philippopoulos s.a.

Sanitary Rupture Discs | DonadonSDD

Sanitary Rupture Discs | DonadonSDD: Reliable Protection for Industrial Hygiene

Sanitary Rupture Discs | DonadonSDD are engineered for safe, efficient, and hygienic pressure relief in industries where cleanliness is critical. These innovative discs provide a robust safety solution for applications in food processing, pharmaceuticals, and biotechnology, ensuring your equipment stays protected while maintaining the highest hygiene standards.

Features & Benefits of Sanitary Rupture Discs | DonadonSDD

  • Hygienic by Design: Built with smooth, polished surfaces, these rupture discs are easy to clean, leaving no room for contamination. Ideal for sensitive environments where sterility matters.
  • Reliable Pressure Relief: Designed to open instantly at a set pressure, they prevent dangerous pressure build-up, safeguarding your valuable equipment and personnel.
  • Non-Invasive Installation: Easily fit the discs into existing systems without the need for complex tools or adjustments, saving on installation time and costs.
  • Corrosion Resistant: Manufactured with high-grade stainless steel, these discs withstand even the harshest cleaning agents and process conditions, ensuring long-lasting performance.
  • Reduced Downtime: Quick and simple replacement means reduced production stoppages, keeping your operations running smoothly.

Sanitary Rupture Discs | DonadonSDD are created for industries where even the tiniest contamination risk is unacceptable. Their seamless and crevice-free design guarantees that cleaning processes reach every surface, eliminating residue and bacteria build-up. This protects both your product quality and your reputation for strict hygiene.

With precise engineering, these rupture discs respond immediately when pressure limits are reached. This swift action prevents equipment damage and costly repairs, making them a smart investment for any industrial setting focused on safety and efficiency.

Installation is straightforward—no need for special tools or technical expertise. The discs fit directly into standard sanitary connections, making upgrades or replacements fast and trouble-free.

For demanding industries where safety, cleanliness, and operational reliability go hand in hand, Sanitary Rupture Discs | DonadonSDD deliver powerful protection with effortless maintenance. Choose DonadonSDD for engineered safety you can trust.

Description

DonadonSDD KRD rupture discs obtained with Nanoscored Technology is a compression-loaded disc or reverse-acting disc, scored around the circumference. This disc has been designed to meet the high quality standards required by 3-A SSI, whose aim is to ensure public health through hygiene equipment.

The KRD model is particularly suitable for the Pharmaceutical, Food, and Biotechnology industries and represents the state-of-the-art for these sectors. This disc is entirely made of AISI 316L stainless steel (or other alloys upon request of the client). It’s smooth surface makes it particularly suitable for C.I.P. and S.I.P. treatments to maintain aseptic conditions. PTFE gaskets, which are certified in compliance with FDA and USP class VI, 3-A, and Eu 10/2011 regulations, facilitate the installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection).

The operating pressure modifies the camber of the convex disc only when reverse pressure is reached. Upon reversal, the disc opens completely in a few milliseconds along the score line, thus preventing fragmentation from forming.

The KRD disc, with its innovative design, can be used with liquids only and can resist both vacuum and high pressure.

ModelKRD
MaterialsStainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
GasketsPTFE
DimensionsDN 1”(25) - DN 8”(800)
Rupture pressure0,3 bar g - 10 bar g (depending on material and diameter)
Tolerancefrom +/- 5 % to +/- 20%
Operating temperatureGaskets in PTFE (max 265°C)
Operating margin90% - Able to reach 95% depending on the conditions of service
FragmentationNo
Use under valveYes
Corrosion resistanceVery good
LiningsYes
ContainerHTC
Rupture indicatorsElectric
ATEX EX II 2 GD CertificationAvailable
PED Certification [CE STAMP]Available
3-A ComplianceAvailable

DonadonSDD’ SCD rupture discs obtained with Nanoscored Technology is a compression-loaded disc with a micro-scored calibrated section opening in petals, featuring 4, 6 or more radial scoring. This disc has been designed to meet the high quality standards required by 3-A SSI, whose aim is to ensure public health through hygiene equipment.

The SCD model is particularly suitable for the Pharmaceutical, Food, and Biotechnology industries. This disc is entirely made of AISI 316L stainless steel (or other alloys upon request of the client). It’s smooth surface on the process side makes it particularly suitable for C.I.P. and S.I.P. treatments to maintain aseptic conditions. PTFE gaskets, which are certified in compliance with FDA and USP class VI, 3-A, and Eu 10/2011 regulations, facilitate the installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection).

The SCD disc reacts to overpressures in just a few milliseconds without fragmentation. Moreover, in many cases, it can be subject to absolute vacuum conditions without the need for supports.

ModelSCD
MaterialsStainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
GasketsPTFE
DimensionsDN 1”(25) - DN 8”(200)
Rupture pressure3 bar g - 25 bar g (depending on material and diameter)
Tolerancefrom +/- 5 % to +/- 20%
Operating temperatureGaskets in PTFE (max 265°C)
Operating marginup to 85%
FragmentationNo
Use under valveYes
Corrosion resistanceVery good
LiningsYes
ContainerHTC
Rupture indicatorsElectric
ATEX EX II 2 GD CertificationAvailable
PED Certification [CE STAMP]Available
3-A ComplianceAvailable

DonadonSDD SCR rupture discs obtained with Nanoscored Technology is a compression-loaded disc or reverse-acting disc with micro-scored calibrated sections opening in petals, featuring 4, 6 or more radial scoring. This disc has been designed to meet the high quality standards required by 3-A SSI, whose aim is to ensure public health through hygiene equipment. PTFE gaskets, which are certified in compliance with FDA and USP class VI, 3-A, and Eu 10/2011 regulations, facilitate the installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection).

The SCR model is particularly suitable for the Pharmaceutical, Food, and Biotechnology industries. This disc is entirely made of AISI 316L stainless steel (or other alloys upon request of the client). It’s smooth surface makes it particularly suitable for C.I.P. and S.I.P. treatments to maintain aseptic conditions.

The SCR rupture disc is used with gas or liquids only (with the presence of a gas cushion), also under cycling and pulsating conditions, while safety is never affected.

The SCR disc reacts to overpressures in just a few milliseconds without fragmentation. The PTFE coating can ensure additional protection.  Moreover, SCR discs can be subject to absolute vacuum conditions without the need for supports.

ModelSCR
MaterialsStainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
GasketsPTFE
DimensionsDN 1”(25) - DN 8”(200)
Rupture pressure0,3 bar g - 10 bar g (depending on material and diameter)
Tolerancefrom +/- 5 % to +/- 20%
Operating temperatureGaskets in PTFE (max 265°C)
Operating margin90% - Able to reach 95% depending on the conditions of service
FragmentationNo
Use under valveYes
Corrosion resistanceVery good
LiningsYes
ContainerHTC
Rupture indicatorsElectric
ATEX EX II 2 GD CertificationAvailable
PED Certification [CE STAMP]Available
3-A ComplianceAvailable

DONADONSDD DCD rupture disc for aseptic applications consists of:

• a slotted, perforated metal part

• a seal membrane (usually in PTFE but also available in a wide range of materials)

• a protection section

This disc is excellent for use with gas and liquids under static conditions and also for low pressures. The DCD disc reacts to overpressures with total opening in a few milliseconds and without fragmentation. Supports can be provided for vacuum and counter-pressure protection.

DonadonSDD composite rupture discs can protect against vacuum and pressure simultaneously.

PTFE gaskets, which are certified in compliance with FDA and USP class VI, 3-A and Eu 10/2011 regulations, facilitate the installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection). DCD rupture discs are designed for C.O.P. (Clean-Out-Of-Place) applications.

ModelDCD
MaterialsStainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
GasketsPTFE
DimensionsDN 1”(25) - DN 8”(800)
Rupture pressure0,1 bar g - 7 bar g (depending on material and diameter)
Tolerancefrom +/- 5 % to +/- 20%
Operating temperatureGaskets in PTFE (max 265°C)
Operating marginup to 80%
FragmentationNo
Use under valveYes
Corrosion resistanceVery good
LiningsYes
ContainerHTC
Rupture indicatorsElectric
ATEX EX II 2 GD CertificationAvailable
PED Certification [CE STAMP]Available
3-A ComplianceAvailable

DonadonSDD Y90 rupture discs obtained with Nanoscored Technology is a compression-loaded disc or reverse-acting disc, scored around the circumference. This disc has been designed to meet the high quality standards required by 3-A SSI, whose aim is to ensure public health through hygiene equipment. PTFE gaskets, which are certified in compliance with FDA and USP class VI, 3-A, and Eu 10/2011 regulations, facilitate the installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection).

The Y90 model is particularly suitable for the Pharmaceutical, Food, and Biotechnology industries. This disc is entirely made of AISI 316L stainless steel (or other alloys upon request of the client). It’s smooth surface on the process side makes it particularly suitable for C.I.P. and S.I.P. treatments to maintain aseptic conditions.

The Y90 rupture disc is used with gas or liquids only (with the presence of a gas cushion), also under cycling and pulsating conditions, while safety is never affected.

Upon reversal, the disc opens completely in a few milliseconds along the score line, thus preventing fragmentation from forming.

ModelY90
MaterialsStainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
GasketsPTFE
DimensionsDN 1”(25) - DN 8”(800)
Rupture pressure0,3 bar g - 10 bar g (depending on material and diameter)
Tolerancefrom +/- 5 % to +/- 20%
Operating temperatureGaskets in PTFE (max 265°C)
Operating margin90% - Able to reach 95% depending on the conditions of service
FragmentationNo
Use under valveYes
Corrosion resistanceVery good
LiningsYes
ContainerHTC
Rupture indicatorsElectric
ATEX EX II 2 GD CertificationAvailable
PED Certification [CE STAMP]Available
3-A ComplianceAvailable

Certifications

Quality certifications are a guarantee. DonadonSDD has obtained the following certifications.

DonadonSDD provides high-quality products that meet the safety requirements of the systems where they are installed. The organisation and procedures fully comply with the ISO 9001 standard to ensure the utmost quality for our products. Our quality system has also met the stringent requirements of the UNI EN 9100 standard concerning design, development, and manufacture of rupture discs for the aerospace industry.

DonadonSDD products – such as rupture discs, explosion venting panels, and rupture indicators – are certified in compliance with PED directive 2014/68/EU or ATEX directive 2014/34/EU. The rupture discs alone are manufactured, tested, and certified in compliance with ASME directive, Section VIII, Division 1 and carry the relative UD stamp. 

DonadonSDD is subject to inspections carried out by 3-A Sanitary Standard, Inc. (3-A SSI) so that our rupture discs can meet the highest sanitary standards.

Upon request, our clients can ask independent inspectors to certify single batches.

DOWNLOAD CERTIFICATIONS