D - Forward Acting Disks


The D Series forward acting rupture disks (bursting discs) are composite design with state-of-the-art laser slotted metal top section. Designed to be used in the 7A – Angle Seat Disk Holder


  • The D Series is a slotted metal top section and allows the use of metal & teflon seal materials. A wide variety of corrosive resistant seal materials are available
  • State-of-the-art laser slotted metal burst cap
  • Operating ratios up to 85% of the low end of burst tolerance
  • Disk design offers high cycle life
  • Excellent for liquid, gas or 2 phased flow
  • Wide range of standard and exotic materials available
  • Sizes from 1/2” (13mm) through 24” (600mm)
  • Burst ratings from 3 psig (0.21 barg) to 2500 psig (172.37 barg)
  • 3-dimensional stainless steel tag permanently engraved with complete disk specifications
  • ASME, CE (PED), and TÜV compliance available


Sizes: 1/2″ – 24″ (13 mm – 600 mm)
Burst Pressure Range: 3 psig – 2,500 psig (0.21 barg – 172.37 barg)
Standard Operating Range: 85%
Vacuum Support Required: Yes

D Specifications