The RA4 rupture disks (bursting discs) are designs to cover the majority of low pressure rupture disk (bursting disc) applications and are designed to be used in the RAH Pre-Torque holder.


  • Designed for Non-fragmentation
  • Operating ratios up to 95% of the minimum tolerance
  • Disk designs offer high cycle life (when compared to forward-acting design disks)
  • Suitable for liquid, gas, or two-phase applications

Options / Accessories

  • TFE liners are available to provide protection from corrosive media
RA4 Rupture Disk (bursting disc)

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