A composite disc for every application.


The metallic top section can be manufactured from various materials, depending on your application and corrosion-resistance requirements. Seals, protective rings, gaskets and outline liners can also be manufactured from a variety of materials to meet your needs. Various seal material options, such as fluoropolymers and exotic metals, help ensure excellent corrosion resistance. CDC’s non-metallic seals are essential to minimize fragmentation.

Unique seven-hole design
Our preformed composite rupture discs feature a seven-hole pattern at the apex of the rupture disc’s top section. This unique configuration, in combination with the pre-cut sections along the dome, provide non-fragmenting characteristics when used with a non-metallic or fluoropolymer seal. By using this seven-hole design, thicker, more durable materials can be used to manufacture the rupture disc, while still achieving the high 80% operating-to-burst-pressure ratio.

Pre-formed or flat style?
Two composite-type rupture disc design styles are offered: a preformed style, like the CDC or PLV rupture disc; and a flat style, like CDC’s ENVIRO-SEAL rupture disc.

The rupture discs consist of two or more metallic or non-metallic components. The components typically consist of a metallic top section and a metallic or non-metallic seal with optional vacuum support, protective rings, gaskets or outlet liner. This rupture disc features a flat seat design for superior metal-to-metal sealing. If you’re looking for a 30° angular “light lip” seat, ideal for normal operating pressures, try our Standard 30˚ seat rupture disc.





If you have any questions please don`t hesitate to contact Thurne specialist directly:

Thurne Baltic

Andris Putnins
Product Sales Manager
Product Sales Manager B.Sc. Chemical Engineering, M.Sc. Materials Science

Phone number

Direct phone: +371 6616 3763 Mobile phone: +371 2689 6799

Thurne Denmark

Morten Christoffersen
Product Sales Manager
Product Sales Manager

Phone number

Direct phone: +45 31 15 65 61

Thurne Finland

Olli-Pekka Tikkanen
Product Sales Manager
Product Sales Manager B. Sc. Chemical Engineering

Phone number

Mobile phone: +358 40 730 8464

Thurne Sweden, Norway

Johan Andersen
Product Sales Manager
Product Sales Manager Industrial Engineering

Phone number

Direct phone: +46 (0)8 - 55 76 93 37 Mobile phone: +46 70 781 37 80

Thurne Poland

Robert Trambacz
Head of Sales, Poland
Head of Sales, Poland M.Sc. Mechanical Engineering

Phone number

Mobile phone: + 48 505 558 761