120 (M3N) Series
The 120 (M3N) carbon graphite seal ring features a multi-spring design with excellent compensation ability and follow-up performance. Suitable for shaft sealing in centrifugal pumps, chemical pumps, and other rotating equipment, operating stably under various media conditions.
| Inner Dia (d) | 14 ~ 90 mm |
| Outer Dia (D) | 28 ~ 120 mm |
| Height (H) | 8 ~ 22 mm |
Note: Above are standard size ranges. Custom non-standard sizes available per drawing.
| Model | 120 (M3N) |
| Temperature | -20°C ~ 200°C |
| Pressure | ≤ 1.2 MPa |
| Speed | ≤ 3500 rpm |
| Compressive Strength | 92 MPa |
| Carbon Content | 99.9% |
| Flexural Strength | 38 MPa |
| Shore Hardness | 78 HS |
| Ash Content | 0.002% |
Above are physical properties of standard graphite (M106H). Performance improves with different impregnation processes.
Carbon graphite seal rings perform best with these mating materials:
Contact us for pricing, technical specs, or custom manufacturing needs.
