ZOOK – Reverse Acting Disks URA Series

- Single disk design covers 95% of plant requirements
- Scoreless design offers higher cycle life when compared to scored reverse-acting disks
- Low and high burst pressures available in a single design
- Excels in liquid or gas applications
- 0% manufacturing range is standard
- Operates to 90% of the disk’s rated burst pressure
- Non-fragmenting design
- Withstands full vacuum without vacuum support
- Excellent for isolating safety relief valves
- Damage ratio of 1.0 or less
- Resists product buildup. Only the smooth convex side of the disk is exposed to the process medium
- Additional TFE corrosion protection available (specify URA-L)
- 3–dimensional stainless steel tag is standard
- ASME UD marking available
