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
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
API 692
Recommended applications
Pipelines
Gas storages
Oil and gas industry
Chemical industry
Power plants
Centrifugal compressors
Turbo expander
Turbines
Pumps
Blower
Notes
Notes/Info Methane Emissions*
Methane is the second largest contributor to climate change after CO2. Methane is emitted in smaller quantities than CO2, but it’s warming potential is 80 times higher. Behind agriculture, the energy industry is the largest emitter of methane emissions.
A convincing argument for action
According to the International Energy Agency around 40-50% of current methane emissions from the oil & gas industry could be avoided at negative or at no net cost. This means that many projects to avoid methane emissions even have a positive business case and pay back in a relatively short time because the gas can be sold instead. If all these possible projects would be realized the impact on climate change would be immensely positive.
CobaDGS eliminates
The CobaDGS is the first dry gas seal, which provides the possibility to seal compressors with zero methane emissions even if they have high working pressures. It is a viable and sustainable option for upgrading existing compressors or can be installed in new compressors.
*Source:
International Energy Agency
https://www.iea.org/weo/methane/
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