PB Series Rupture Disk

Forward Acting Disk, ZOOK

PB Series Rupture Disk

The PB Series rupture disks (bursting discs) mount with the concave surface facing the process media.

Sizes 1/4″ – 24″. Burst Ratings from 5 to 50,000 psig.


  • Vacuum supports are required on vacuum service
  • TFE liners are available to provide protection from corrosive media if required. Coatings are also available

Features And Benefits

  • Forward-action, tension-loaded design without score lines
  • Operating ratios up to 75% of the minimum tolerance
  • Seat Configuration: Angular 30°
  • Suitable for liquid, gas or 2-phase flow

Common Applications