Pusher Seal
Elastomer Seal
Metal Bellows
Standard Cartridge
Split Seal
Gas Lubricated
Engineered Seal
Compressor Seal
Agitator Seal
Marine Seal
Mechanical Seal CobaDGS
Type in the H-Brinker Coba HBDGS
CobaDGS Operating range
- Shaft diameter: d = 24.5 … 360 mm (0.96“… 14.17“)
- Pressure (static and dynamic): p = from vacuum up to 160 bar (2,321 PSI)
- Design temperature: t = -46 °C … +230 °C (-51 °F … +446 °F)
- Sliding velocitiy: vg = up to 140 m/s (459 ft/s)
Description
| Item | Description |
| 1 | (Seat) Rotating seal face |
| 2 | (Seal face) Stationary seal face |
| 3 | Thrust ring |
| 4 | Spring |
| 5 | Shaft sleeve |
| 6 | Housing |
| 7 | Labyrinth |
| 8 | DGS as seal on atmoshere side |
| 9 | CobaSeal as separation seal |
Seal CobaDGS Features
- Gas-lubricated
- Bi-directional
- Ready-to-fit cartridge unit
- Available for following seal arrangements: single and tandem
- Co-axial primary seal
- Separation seals as
- CobaSeal, carbon rings or labyrinths optional
Seal Coba HBGS Material
- Stationary seal face: Silicon carbide with DLC-coating, DiamondFace-coating optional
- Rotating seal face (Seat): Silicon carbide with DLC-coating, DiamondFace-coating optional
- Secondary seals: FKM or other elastomers, depending on product gas composition
- Metal parts: 1.4006 or other stainless steels
Seal Coba HBGS Advantages
- No methane-/ process gas emissions
- Supplied with clean nitrogen (no dew point and dirt problems)
- Robust
- Offers higher safety than a double seal
- Upgrade-possibility of existing single, double and tandem seals
- No modification of the compressor necessary
- Efficient alternative to hermetically sealed systems
- For compressors with gas- and steam turbines, as well as with electric drive
Seal Coba HBGS Recommended applications
Pipelines
Gas storages
Oil and gas industry
Chemical industry
Power plants
Centrifugal compressors
Turbo expander
Turbines
Pumps
Blower
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