Graphite bursting disc Donadon SDD
ISO 4126, PED

Graphite discs are very resistant to aggressive fluids, even at high temperature.
Bursting pressure has low sensitivity to temperature variations.
Graphite discs are made of high purity graphite impregnated with phenolic resins in order to make the product non porous
Opening is total but with fragmentation.
Donadon SDD supply three graphite disc models:
• GA type, a graphite rupture disc mounted on a Stainless steel (or other metal) ring that may be directly inserted between flanges. This disc is very versatile because has both the robustness of a metal holder and the performance of a graphite disc.
• GR type, a graphite rupture disc mounted on a graphite or metal holder. This disc is economic and versatile.
GM type, a monoblock graphite rupture disc that may be directly inserted between flanges.
Vacuum support is required for rupture pressures below 1.7 barg. At higher calibrations the disc is self-supporting.

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