The table below represents presure ratings for this cap across our stock materials. Pressure ratings are calculated as per ASME B31.3 and are valid up to 600 deg F.
| Material | Pressure Rating (psig) | 
| Carbon Steel | 5,100 | 
| 304 Stainless | 4,600 | 
| 316 Stainless | 4,400 |