With around 250 locations and 90 serve centers, we are represented in the most important economic regions of the world. The advantages are clear: short paths to our customers, fast response times and a shared language.
Efficient alternative to hermetically sealed systems
For compressors with gas- and steam turbines, as well as with electric drive
CobaDGS eliminates methane emissions.
The CobaDGS reliably prevents any process gas emissions that are technically caused by primary seal leakage during compressor operation.
This makes CobaDGS the most climate-friendly sealing solution for
high-pressure turbo-compressors. It is recommended as a sustainable sealing solution for modernization of existing compressors and as a first fit for OEM.
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)
Project specific special designs possible.
Materials
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
Other materials on request.
Dimensions on request.
Standards and approvals
NACE
Recommended applications
Pipelines
Gas storages
Oil and gas industry
Chemical industry
Power plants
Centrifugal compressors
Turbo expander
Turbines
Pumps
Blower
LNG
CCUS
Hydrogen
Alternative fuels production
Power generation
Product variants
Optionally available
High pressure nitrogen generator
On-site generation of nitrogen.
Ensures continuous, uninterrupted nitrogen supply
Solves the logistics problem, especially for sites in remote, hard-to-reach areas.
No more hassle transporting the nitrogen.
Nitrogen generation is based on pressure swing adsorption. Storage at 330 bar – for intermittent generation/compression and back-up supply – then reduction to the required pressure.
The complete nitrogen production and supply system comes in a container which should be installed out of ATEX area.
Required power supply: Heavy current, 400V, 50Hz/60Hz, 3 Ph
Similar products
DGS
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