MBS682
MBS682
| Item | Description |
| 1 | Seal ring with bellows unit |
| 2, 8, 10 | Graphite ring |
| 3 | Collar |
| 4 | Spring washer |
| 5 | HSH Cap screw |
| 6, 14 | Set screw |
| 7 | Mating ring |
| 9 | Seal sleeve |
| 11 | Drive collar |
| 12 | Pin |
| 13 | Clamping sleeve |
| 15, 20 | Hexagon bolt |
| 16 | Gland plate |
| 17 | Gasket |
| 18 | Throttle bushing |
| 19 | Setting device |
| 21 | Baffle sleeve |
| 22, 23 | Retaining ring |
F Flush
Q Quench
D Drain
MBS682
Features
- API 682 Category 2 and 3, Type C, Arrangement 1 seal
- Single seal
- Balanced
- Cartridge unit
- Rotating metal bellows
- Shrink fitted seal ring and solid mating ring
Advantages
- Compact design
- Suited for applications with extreme high and low temperatures
- Absence of dynamic O-Ring eleminates/reduces seal face hang-up
- Bellows design minimizes variation in face load due to shaft expansion or face wear
- Resistant to abrasive particles in the medium, no shaft or sleeve fretting
- Also available in double ply design
Materials
Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Bellows: Inconel® 718 (M6)
Secondary seals: Graphite (G)
Metal parts: CrNiMo steel 316 (G),
Carpenter® 42 (T4)
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Bellows: Inconel® 718 (M6)
Secondary seals: Graphite (G)
Metal parts: CrNiMo steel 316 (G),
Carpenter® 42 (T4)
Standards and approvals
- API 682 / ISO 21049
- API 682 4th ed. Cat. 2/3 - 1CW-FL
Recommended applications
- Refining technology
- Oil and gas industry
- Petrochemical industry
- Chemical industry
- Power plant technology
- LPG plants
- API 610 / ISO 13709 pumps
- Process pumps
Recommended piping plans
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