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RA4Reverse Acting Disks

The RA4 reverse acting rupture disks (bursting disks) are designed to cover the majority of low pressure rupture disk (bursting disk) applications and are designed to be used in the RAH Pre-Torque holder.

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ASME UD, CE (PED), and TÜV compliance available

  • Features
  • Specifications
  • Installation
  • Datasheets & Brochures
  • Designed for Non-fragmentation
  • Operating ratios up to 95% of the low end of burst tolerance
  • Disk design offers high cycle life
  • Suitable for liquid, gas, or two-phase applications
  • Standard manufacturing design range and total tolerance ensures marked rating on disk tag does not exceed the MAWP of equipment
  • Withstands full vacuum
  • Wide range of standard and exotic materials available
  • Sizes from 1” (25mm) through 12” (300mm)
  • Burst ratings from 2 psig (0.14 barg) to 40 psig (2.76 barg)
  • Unique alignment pin design ensures proper disk orientation into RAH Series disk holder
  • 3-dimensional stainless steel tag permanently attached and engraved with complete disk specifications

Sizes: 1″ – 12″ (25 mm – 300 mm)
Burst Pressure Range: 2 psig – 40 psig (0.14 barg – 2.76 barg)
Operating Ratio: Operating ratio up to 95% of the low end of burst tolerance
Vacuum SUpport Required: No

Need help to choose the rupture disk size for your specific application?

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

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