Features:

1. Dual rated to protect against two different pressures in opposite directions
2. Applications include protection of storage tanks against both excess vacuum and over pressure when single vessel entry is required
3. Sizes 1-1/2! thru 24! diameters
4. Designed to fit ASME B16.5 Class 150 flanges.
5. Burst ratings 0.25 to 1000 psig or higher
6. 0% manufacturing range
7. Operating pressures to 90% of the disk’s marked burst pressure
8. Temperature ratings –290°F to +430°F (–179°C to +221°C).
9. Optional liner available on flat side of disk to extend corrosion resistance
10. Carbon steel armor standard, 316SS optional
11. Furnished complete with TFE gaskets attached. Other gasket materials are available
12. Generally a minimum differential of 10 psi is
    required between burst ratings. Please contact us