SD Rupture Disks (bursting discs) are an extension of ZOOK’s Graphite Rupture Disk (bursting disc) design. Applications include food processing, dairy, breweries, pharmaceutical, distilling, baking, canning, cosmetics, biotechnology, and petrochemical industries.


  • Provides over-pressure protection in sanitary piping system
  • Ideal for high purity and corrosion service
  • Rugged design
  • TFE lined to resist product buildup
  • Full bore opening upon rupture
  • Nominal I.D. equals the fitting size
  • Self-Supporting under full vacuum at set pressures of 25 psig or higher
  • Excels in liquid, gas, or two-phase applications
  • 0% manufacturing range is standard
  • Standard operating ratio of 90% of the marked rating on the disk tag. Higher operating ration may be available upon request. (Contact ZOOK for operating ratio on pressures below 40 psig)
  • Installs using industry standard Tri-clamp®/Tri-clover® fittings (components stocked by ZOOK)
  • Standard gasket material: Black Buna-N
  • ASME UD, CE, and TUV compliance available