The ProPOS Rupture Disk (bursting disc) is a bi-directional rupture disk (bursting disc) designed to prevent over pressurization and provide vacuum protection for processing and storage tanks. The assembly design allows ultra low-pressure relief in the positive direction and low pressure relief in the vacuum direction


  • Vacuum Relief ratings from 1" WC to 30" WC
  • Positive Pressure relief from 2 psig to 150 psig
  • Dual-Acting, tension loaded design, with laser cut metal top section and girdle (when ordered in 316SS)
  • 316SS girdle is standard. Other materials available
  • Flat seat design

Options / Accessories

  • Burst Indication
Propos Bi-Directional Rupture Disk

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