ZOOK – Reverse Acting Disks RA4 Series

- Designed for Non-fragmentation
- Operating ratios up to 90% of the low end of burst tolerance
- Disk designs offer high cycle life (when compared to forward-acting design disks)
- Certified for liquid, gas, or two-phase applications
- Standard manufacturing ranges of 0%, -5%, and -10% ensures marked
rating on disk 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
disk is exposed to the process media - Unique alignment pin design ensures proper disk orientation into RAH holder
- 3-dimensional stainless steel tag permanently engraved with complete disk specifications
- ASME UD, CE, and TUV compliance available
