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RA SERIES Reverse-Acting Rupture Disk system

The RA Series offers a single unique pre-torque holder design for use
with multiple types of ZOOK Reverse-Acting metal rupture disks. 

RA Series "Quick Look": Bulletin no. 475000

rah

RAH PRE-TORQUE RUPTURE DISK HOLDER

  • Pre-Torque Design allows
    ...pre-assembly of a rupture disk into a holder prior to field installation
    ...removal of the assembly from the piping system for inspection without disturbing the seal integrity of the Rupture Disk
    ...mounting between soft or fragile material flanges (PVC, Glass, etc.) and sealed by using a soft gasket material with low torque on the companion flange boltingBest choice for low and intermediate burst ratings
  • Mounts directly between standard ASME B16.5, PN, or JIS flanges
  • Sizes 1” thru 12”
  • Standard Holder Materials: Carbon Steel, 316SS, Hastelloy

      Bulletin No. 475100 - RAH

RA4 SERIES RUPTURE DISK

  • Solid metal Scoreless disk designed for Non-Fragmentation
  • Best choice for Low range of burst ratings (3psi to 40 psi)
  • Operating ratios up to 90% of the low end of burst tolerance
  • ASME UD, CE, and TUV compliance available (Liquid and Gas Service)

      Bulletin No. 475200 - RA4
ra6

RA6 SERIES RUPTURE DISK

  • Solid metal Scoreless disk designed for Non-Fragmentation
  • Best choice for Intermediate range of burst ratings (12psi to 200 psi)
  • Standard operating ratio of 90% of the marked rating on disk tag. (Higher operating ratio available upon request)
  • ASME UD, CE, and TUV compliance available (Liquid and Gas Service)

      Bulletin No. 475300 - RA6

ra8

RA8 SERIES RUPTURE DISK

  • Solid metal Scoreless disk designed for Non-Fragmentation
  • Best choice for Upper range of burst ratings (26psi to 1000 psi)
  • Standard operating ratio of 90% of the marked rating on disk tag. (Higher operating ratio available upon request)
  • ASME UD, CE, and TUV compliance available (Liquid and Gas Service)

      Bulletin No. 475400 - RA8
rax

RAX SERIES RUPTURE DISK

  • Solid metal Cross-Scored disk designed for Non-Fragmentation
  • Best choice for Upper range of burst ratings (27psi to 1000 psi)
  • Standard operating ratio of 90% of the marked rating on disk tag. (Higher operating ratio available upon request)
  • ASME UD, CE, and TUV compliance available (GAS SERVICE ONLY)

      Bulletin No. 475500 - RAX
 
 

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