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| Type SMB4 is the leading seal of choice for demanding of high temperature applications. Available in either 17-4PH, AM350 or Alloy 718, its high-strength design provides maximum reliability. The stationary bellows design accommodates high shaft-to-seal-chamber misalignment.Unlike rotating seals that must flex on every revolution to accommodate shaft-to-seal-chamber misalignment, the stationary SMB4 adapts to this condition by flexing only once during installation.This reduces seal movement, resulting in increased seal life. | |
| Operation Limits | Combination of Materials |
| Pressure: ≤ Vacuum to 25 bar / 360 psi | Seal Face: |
| Vacuum to 69 bar / 1000 psi (DOUBLE-PLY) | Carbon, Silicon Carbide, Tungsten Carbide |
| Temperature: - 75 ~ 425 ℃ | Metal Bellows: |
| Linear Speed: ≤ 25 m/s | 17-4PH, AM350, INCONEL 718 |
| Secondary Seal: | |
| Graphite | |
| Metal Component: | |
| SS316, SS304 | |
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