Operating Limits of Elastomer Bellow Seals R12
- Temperature: -20℃ to 200℃, dependent on the elastomer
- Pressure: Up to 5 bar
- Speed: Up to 12 m/s
- End play/axial float allowance: ±0.1mm
Sizes of Elastomer Bellow Seals R12
3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″
Materials Combination of Elastomer Bellow Seals R12
- Face: Carbon, SiC, TC
- Seat: Ceramic, SiC, TC
- Bellow: NBR, EPDM, VITON etc.
- Spring: SS304, SS316
- Metal parts: SS304, SS316
Specification of Elastomer Bellow Seals R12
| Elastomer Bellow Seals By Size | d | D | D1 | L1 | L2 |
| R12-3/8″A | 9.53 | 23.8 | 22.23 | 6.35 | 16.08 |
| R12-3/8″ | 9.53 | 26.97 | 25.4 | 7.93 | 16.86 |
| R12-1/2″A | 12.7 | 26.97 | 25.4 | 6.35 | 16.86 |
| R12-1/2″ | 12.7 | 26.97 | 25.4 | 7.93 | 16.86 |
| R12-5/8″ | 15.88 | 30.94 | 31.75 | 10.31 | 18.44 |
| R12-3/4″ | 19.05 | 34.11 | 34.93 | 10.31 | 18.44 |
| R12-7/8″ | 22.23 | 42.85 | 41.28 | 11.1 | 20.82 |
| R12-1″ | 25.4 | 42.85 | 41.28 | 11.1 | 20.82 |
Design Drawing of Elastomer Bellows Mechanical Seals R12
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