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Zook RAX Bursting Disc – Scored Reverse Acting Metal

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The Zook RAX Bursting Disc (rupture disk) is a Scored Reverse Acting Metal Rupture Disc designed for high-pressure applications. It is specifically engineered for use with the RAH Pre-Torque Holder, offering easy maintenance and reliable performance. The RAX disc provides exceptional safety relief valve protection by isolating the valve components from harsh environments, making it ideal for a wide range of industrial processes.

  • Specifications
  • Technical Data
  • Advantages
  • Industries
  • Applications
  • Video
  • Documents
  • Contact

Specifications

Sizes: Available from 1″ (25mm) to 12″ (300mm)

 

Burst Ratings: 27 psi (1.86 barg) to 1000 psig (68.97 barg)

 

Materials: Wide range of standard and exotic materials available

 

Operating Ratio:

 

  • 90% of the marked rating on the disc tag
  • Extendable to 95% of the minimum burst pressure (consult Zook Supplier for pressures below 40 psig)

 

Compliance: ASME UD, CE, and TUV

 

Liners: TFE liners available for corrosive media protection

Technical Data

Disc Design:

 

  • Solid metal cross-scored for non-fragmentation
  • High cycle life compared to scored reverse-acting designs
  • Certified for gas service only

 

Manufacturing Ranges:

 

  • 0%, -5%, and -10% ensure the marked rating on the disc tag does not exceed the MAWP of the equipment

 

Vacuum Support: Withstands full vacuum without additional support

 

Product Build-Up Resistance: Smooth convex side of the disc is exposed to the process media to resist build-up

 

Alignment: Unique alignment pin design ensures proper disc orientation in the RAH holder

 

Tag Information: 3-dimensional stainless steel tag, permanently engraved with complete disc specifications

Advantages

  • High Operating Ratio: Can operate up to 95% of the minimum burst pressure, ensuring maximum efficiency
  • Durability: Designed to withstand high pressure and full vacuum, providing long-lasting performance
  • Versatility: Compatible with a wide range of materials and sizes, making it suitable for various industrial applications
  • Easy Maintenance: The RAX disc is easy to install and maintain when used with the RAH Pre-Torque Holder
  • Safety: Provides effective protection for safety relief valves by isolating them from hostile environments

Industries

  • Chemical Processing
  • Oil & Gas
  • Pharmaceutical Manufacturing
  • Petrochemical Plants
  • General Industrial Applications

Applications

  • Non-Fragmenting Design: Ensures safe operation without debris generation
  • High Cycle Life: Outperforms traditional scored reverse-acting designs in longevity
  • Temperature Flexibility: Suitable for a wide range of temperatures with optional liners
  • Certified for Gas Service: Ensures reliability in gas applications
  • Precision Manufacturing: Maintains high accuracy with 0%, -5%, and -10% manufacturing ranges
  • Visual Verification: Permanently engraved tag with complete specifications ensures easy identification and compliance

Video

Contact Us

Do you have questions or comments about receiving a quote, our products, solutions and services, and support? Contact us by filling out the form.

  • Michael Bradley (External) – Mob: 086 047 6178
  • Ken Killoughy – Tel: 021 461 7210
  • Ross O’Donovan – Tel: 021 461 7230
  • Stephen White - Mob: 083 165 3830
  • Vicki McGrath – Tel: 021 461 7207
  • Office Tel: 021 461 7200

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