We provide global support for safe and economical handling of your corrosive media. The basis for our products and solutions is POLYFLURON, which continues to perform safely when other plastics have long since reached their limits.
Performance parameters at specific design temperatures are simulated and confirmed by tests,no extrapolation necessary for our expansion joints
Superior POLYFLURON quality enables high fibrillation, low void content and optimum crystalinity
Our expansion joints offer you maximum flexibility with up to 10 convolutions, a diameter of up to 1800 mm and are additionally available with vacuum support rings made of CFRC
FLUROFLEX® expansion joints
FLUROFLEX expansion joints are also used to absorb oscillations and vibrations – for instance those generated by pumps – because of its low susceptibility to material fatigue and the complete absence of brittle fracture.
Our expansion joints are based on POLYFLURON PTFE and mainly installed in steel- and PTFE-lined steel pipelines, enamel/ glass-lined pipelines and plastic and fibre-reinforced plastic (FRP) pipelines. Because of their flexibility and low spring rates, they are also used in sensitive plant components with enamel finishes, in FRP and graphite process equipment and graphite heat exchangers.
- Diameter: DN 25 to DN 2500
- Pressure levels: Vacuum up to 25 bar / 2.5 MPa
- Temperature: up to 200 ° C
- Lining: white or antistatic black
- Large axial, lateral and angular movements
POLYFLURON piping systems
Based on our experience with paste-extruded PTFE and more than 1000 reference customers, we supply a comprehensive range of POLYFLURON lined piping systems, mainly for the transport of corrosive media.
- Diameter (seamless): DN 25 bis DN 600
- Length: 100 to 6000 mm
- Pressure rating: PN10 (10 bar / 1 MPa)
- Temperature: -10 to +200 ° C
- Flange types: EN or ANSI flanges
- Lining: white or antistatic black
- As a dip tube or inlet sleeves for conveying liquids - Flange safety devices: safety straps and protective shields
POLYFLURON linings and lining services
For the lining of components, we supply a comprehensive range of POLYFLURON liners. You can also request to have your existing components lined directly by our specialists. Our pipe liners are seamless and available in many different sizes:
- Diameter: DN 25 to DN 600
- Length: Up to 8000 mm
- Thickness: 1 mm to 8 mm
As supplier of large-capacity steel components such as columns, reactors, and vessels with a POLYFLURON lining, we can line components of virtually any shape or size – even complex geometries. Our portfolio leads from seamless to welded linings, depending on the shape and size of the component.
SIGRABOND Chemical is a modern, high-strength, temperature resistant composite material made of carbon fibers within a plastic or carbon matrix. It outperforms most other conventional materials and provides significant technological, as well as economic, benefits.
Carbon fiber reinforced column internals
Our internals are designed both for new column installations and upgrades of existing installations utilizing traditional corrosion-resistant materials (exotic metals, ceramics, plastics, glass linings, etc.) in the chemical, fine chemical and petrochemical industry, as well as in the food and fertilizer industry.
Freedom in operation
- Performance warranty for mechanical and hydraulic design
- Third-party certification of mechanical design by FEM on request
- Hydraulic design confirmed by distributor test at test bench
- Design and materials ensure high tolerance to process fluctuations
No material mix in internals
- Full portfolio of column internals made of carbon fiber composites (CFC) available
- Portfolio covers the whole range of applications regarding volume flow, temperature and corrosion resistance
Easy handling and installation
- Lightweight design of all components
- Segmented versions for installation via manhole
- Exclusive use of materials with non-ceramic properties
We have set up a cooperation with the global leading internal supplier, thus combining our material expertise with their mass transfer know-how. This results in innovative and economic solutions for your demanding applications.
Our innovative column internals include:
- Liquid distributors
- Liquid collectors
- Structured packing
- Support grids
- Retaining grids
- Feed tubes for liquids and gases
- Column plates (e.g. sieve plates)
SGL Carbon´s rupture disks are made exclusively from DIABON graphite material, PFA (fluoroplastic), PTFE or SIGRAFLEX® graphite foil. These materials are notable for their high resistance to a large number of aggressive media.
Several variants of rupture disks are available to serve your special purposes e. g. Series HT for highest temperatures up to 300 °C or Series F with PFA coating for thigh temperature, vacuum and food applications.
Bursting pressure remains constant across the full temperature range
Available in many designs and material options for multiple process conditions (e.g. vacuum, food and pharma application)
Pressure release across the entire aperture due to cermic properties of DIABON graphite; visual and acustic alarm systems are available
- On short call
Rupture disks are available from stock in many sizes and designs
Conversely, our rupture disks made of synthetic resin-impregnated graphite (series N, D and DV) do show influence of temperature, but this occurs only above 50 °C. Yet, their reliability is clearly higher in comparison to metal disks, as DIABON graphite rupture disks exhibit a much smaller drop in bursting pressure with a rise in temperature.
More control – more reliability
Our rupture disks, made of high-grade graphite for process equipment, steadily burst at the rated pressure. Due to the homogenous structure of the material, constant strength is maintained all over the disk, only rupturing when pressure reaches the critical value.
Ring flanges for additional safety
On request, our disks (series N, F and HT) can be supplied with a carbon fiber-reinforced ring flange. This reduces the risk of rupture due to assembly errors and minimizes the likelihood of media escaping after the safety disk is released.
Instant release of pressure
A further major advantage lies in the optimized brittleness of the material. Thanks to this, our DIABON graphite rupture disks instantly free the entire pressure release aperture on bursting.
Resisting temperature rises
While the conformity to rated bursting pressures in metal rupture disks generally declines as temperature rises, our disk series F and HT remain unaffected by heat. The mechanical strength of the disks doesn’t alter over the entire permissible temperature range.