Oil Pump Double Seal Series
The oil pump double mechanical seal features a dual-seal face design, developed specifically for oil pump rotating equipment. Dual-ring coordinated sealing provides higher sealing reliability, effectively preventing oil leakage. Suitable for various industrial oil pumps, hydraulic pumps, and lubrication systems. Made from premium carbon graphite with precision-lapped faces, offering excellent self-lubrication and wear resistance in oil media.
| Inner Dia (d) | 12 ~ 80 mm |
| Outer Dia (D) | 24 ~ 100 mm |
| Height (H) | 8 ~ 20 mm |
Note: Above are standard size ranges. Custom non-standard sizes available per drawing.

| Model | Oil Pump Double Seal (custom per drawing) |
| Temperature | -20°C ~ 200°C |
| Pressure | ≤ 1.0 MPa |
| Speed | ≤ 3500 rpm |
| Medium | Oils, hydraulic fluid, lubricants |
| 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.