Home > Products > Ductile Iron Backup Rings > Convoluted Backup Rings - 1/2" to 22"BUP-SDR Convoluted Deltaflex® Backup Ring - 1/2" to 22"
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| <FM> APPROVED OPTIONS - DI |
| SIZE | SDR | RATING |
| 2'' | 7 | FM (200psi) |
| 3'' | 7 | FM (200psi) |
| 4'' | 7 | FM (200psi) |
| 6'' | 7 | FM (200psi) |
| 8'' | 7 | FM (200psi) |
| 10'' | 7 | FM (200psi) |
| 12'' | 7 | FM (200psi) |
| 14'' | 7 | FM (200psi) |
| 16'' | 7 | FM (200psi) |
| 18'' | 7 | FM (200psi) |
| 20'' | 7 | FM (200psi) |
| 22'' | 7 | FM (200psi) |
| 24'' | 7 | FM (200psi) |
| 26'' | 7 | FM (200psi) |
| 2'' | 11 | FM (160psi) |
| 3'' | 11 | FM (160psi) |
| 4'' | 11 | FM (160psi) |
| 6'' | 11 | FM (160psi) |
| 8'' | 11 | FM (160psi) |
| 10'' | 11 | FM (160psi) |
| 12'' | 11 | FM (160psi) |
| 14'' | 11 | FM (160psi) |
| 16'' | 11 | FM (160psi) |
| 18'' | 11 | FM (160psi) |
| 20'' | 11 | FM (160psi) |
| 22'' | 11 | FM (160psi) |
| 24'' | 11 | FM (160psi) |
| 26'' | 11 | FM (160psi) |
| 28'' | 11 | FM (160psi) |
| 30'' | 11 | FM (160psi) |
| 32'' | 11 | FM (160psi) |
| 34'' | 11 | FM (160psi) |
| 36'' | 11 | FM (160psi) |