Features
- Oil-lubricated
- Double seal
- Balanced
- Bi-directional
- Stationary bellows (process side)
- Multiple springs (bearing side)
- Shrink-fit seat
- Double-pressure balanced
Advantages
- Suitable for high sliding velocities
- Seal does not open if oil pressure drops
- Rugged seat with bandage ensures
- reliable operation
- Compact design with few sealing
- components
Operating range
- Shaft diameter: d = … 220 mm (8.66″)
- Pressure: (p2-p1) = … 5 bar (73 PSI)
- Sliding velocity: vg = 90 m/s (295 ft/s)
Materials
- Bellows: AM350, Inconel® 718,
- Hastelloy®-C
- Seal face: Special SiC, high-density
- carbon graphite
- Seat: Silicon carbide
- Secondary seals: FKM (bearing side)
- Metal parts: 1.4301, Carpenter® 42,
- Inconel® 718, Hastelloy®-C
| Item | Description |
| 1.1 | Seat |
| 1.2, 2.3, 3.2 | Retainer |
| 2.2, 3.1 | Seal face |
| 2.4 | Bellows |
| 2.5 | Adapter |
| 4 | O-ring |
| 5 | Spring |
| 2.6, 6 | Housing |
| 2.7 | Damper |
| 7 | Retaining ring |
| 8 | Sleeve |
| 9 | Spacer |
| A | Oil IN |
| B | Oil OUT |
| C | Drain |
Recommended applications
- Oil and gas industry
- Refining technology
- Petrochemical industry
