Zook RA4 Bursting Discs – Reverse Acting Metal

The Zook RA4 Bursting Discs (rupture discs) is a Reverse Acting Metal Rupture Disc and are complementary designs to cover the majority of rupture disc applications. Zook RA4 Bursting Discs are suitable and certified for liquid, gas, or two-phase applications.They are specifically designed to be used in the RAH type holder. This is a Pre-Torque holder specifically designed for easier maintenance in your process line. They are a unique holder designed for use with multiple types of ZOOK Reverse-Acting metal rupture discs.

  • Sizes from 1″ (25mm) through 12″ (300mm)

Safety Relief Valve Protection:
When a disc is mounted under a Safety Relief Valve, the working components of the valve are isolated from hostile environments.
Option Liners:
TFE liners are available to provide protection from corrosive media. Please note that the maximum temperature ratings for discs supplied with liners are lower than an unlined disc. The process side liner is placed between the disc and process side ring.

Features:

  • Designed for Non-fragmentation
  • Operating ratios up to 95% of the minimum tolerance
  • Disc designs offer high cycle life (when compared to forward-acting design discs)
  • Certified for liquid, gas, or two-phase applications
  • Standard manufacturing ranges of 0%, -5%, and -10% ensures marked rating on disc tag does not exceed the MAWP of equipment
  • Withstands full vacuum without vacuum support
  • Wide range of standard and exotic materials available
  • Sizes from 1″ (25mm) through 12″ (300mm)
  • Burst ratings from 2 psi (0.14 barg) to 40 psig (2.76 barg)
  • Resists product build-up. The smooth convex side of the disc is exposed to the process media
  • Unique alignment pin design ensures proper disc orientation into RAH holder
  • 3-dimensional stainless steel tag permanently engraved with complete disc specifications
  • ASME UD, CE, and TUV compliance available

Contact our Process Equipment Team:

Noel Bracken – Tel: 083 0891204

Conor Foley- Tel: 021 461 7206