Mechanical Seal DGS
Type in the H-Brinker HBGS
DGS Operating range
- Shaft diameter: d = 24.5 … 406 mm (1.14″ … 15.98″)
- Pressure: p = 0 … 160 bar (2,320 PSI)
- Design temperature: t = -46 °C … +230 °C (-51 °F … +446 °F)
- Sliding velocitiy: vg = up to 227 m/s (744 ft/s)
Description
| A | Primary seal gas supply |
| B | Primary vent |
| C | Secondary gas seal supply |
| S | Secondary vent |
| D | Separation gas supply |
| Item | Description |
| 1 | Seal face, stationary |
| 2 | Seat, rotating |
| 3 | Thrust ring |
| 4 | Spring |
| 5 | Shaft sleeve and seat retainer |
| 6 | Intermediate sleeve |
| 7, 8 | Housing (size matched to installation space) |
| 9 | Separation seal (CSR) |
| 10 | Labyrinth |
| 11 | Intermediate labyrinth |
Seal DGS Features (HBGS)
- Gas-lubricated
- Uni-directional or bi-directional
- Ready-to-fit cartridge unit
- Single, double, tandem and tandem with intermediate labyrinth available
- Separation seals as labyrinths, carbon rings or CobaSeal are optionally available
Seal DGS Material
Seal face: Silicon carbide with DLC coating, Carbon graphite
Seat: Silicon carbide with DLC coating
Secondary seals: FKM
Metal parts: 1.4006 or other stainless steels
Other materials on request.
Available also with EagleBurgmann DiamondFace technology.
Seal HBGS Advantages
- Wear-free and contact-free operation
- Self-cleaning 3D gas grooves
- High gas film stiffness
- Secure cupped retainer for seat
- Available in various materials for optimized chemical resistance
- Proven, reliable and economical solution
Seal DGS Recommended applications
Oil and gas industry
Refining technology
Petrochemical industry
Hydrocarbon gas
Ammonia
Nitrogen
Air
Centrifugal compressors
Turbo expanders
Blowers
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