Donadon DIF rupture disc is a composite conventional disc formed by four parts :
- A slotted, perforated metal part.
- A seal membrane (usually in PTFE but also available in many other metallic or non-metallic materials.
- A protection section.
- A calibration ring.
This disc has been designed to be mounted between flanges. Supports may be provided for protection from vacuum or counter pressure.
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