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INVERTEDGraphite Rupture Disk

The INVERTED Type Graphite Rupture Disk (bursting disk) is the best choice for higher burst ratings.

Try Z-SIZE, our user-friendly online tool that calculates the accurate rupture disk size in just minutes

ASME (UD) and PED (CE) compliance available

  • Features
  • Specifications
  • Installation
  • Datasheets & Brochures
  • The best choice for higher burst ratings
  • Available in nominal sizes 1/2” (15mm) thru 24” (600mm) diameters
  • Fail-Safe Design: If the disk is damaged or incorrectly installed, it will always burst at or below the marked burst rating
  • Designed to fit industry standard flanges ASME B16.5, ISO and JIS
  • Burst ratings 0.25 psig (0.02 barg) to 1,000 psig (68.95 barg) or higher
  • 0% manufacturing range
  • Flat surface of the disk contacts the process media
  • Operating pressures to 90% of the disk’s marked burst pressure. Contact ZOOK for operating ratio for burst pressures below 40 psig (2.76 barg)
  • Temperature ratings –290°F to +700°F (–179°C to +371°C) Maximum temperature rating without insulation is 430°F (221°C) or 700°F (371°C) with insulation. Contact ZOOK for higher temperature ratings. The specified temperature shall be at the disk location at the time when the disk is expected to rupture
  • All flange group 2 disks are armored
  • Many standard Inverted disks in common sizes and pressure ratings are available for RAPID Delivery. Contact ZOOK for more information
    Sizes in (mm) : 3”(80), 4”(100), 6”(150), 8”(200) to fit ASME B16.5 Class 150 flanges
    Burst Pressures psig (barg): 125 (8.62) and 150 (10.34)
    Note: RAPID Delivery Inverted disks are supplied with adhesive tags

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