FS-Inverted Type Rupture Disk

ZOOK’s Fluoropolymer Sintered Graphite Rupture Disk (bursting disc) offers enhanced features when compared to resin impregnated graphite disks. The Fluoropolymer coating is sintered at a high temperature onto a graphite blank. The durable coating seals the graphite material enhancing the corrosive capability and allows the disk to operate at sub-zero to elevated temperatures with minimal effect on the burst performance of the rupture disk (bursting disc).
FS-Inverted Type Rupture Disk


  • Non-stick surface conforms to FDA regulations
  • Resists product build-up – only the coated flat surface of the disk is exposed to the process medium
  • Durable coating offers exceptional corrosion resistance
  • Designed to fit ASME B16.5 Class 150 and 300 flanges
  • 0% manufacturing range is standard
  • Extended temperature range: –290°F to +500°F (–179°C to +260°C)
  • Vacuum support not required for disks with burst pressures of 25 psig and above
  • ASME UD marking available – Certified flow resistance factor (Krgl) = 0.64