FLEXSEALS® 500 is an asbestos-free gasketing sheet made of carbon fibres bonded with NBR rubber. It offers excellent steam resistance with higher performance parameters, providing a seal up to +250°C.
It is particularly suitable for applications involving high temperatures and pressures, primarily for superheated steam. It is also suitable for alkaline fluids. Thanks to their high-quality composition, these gasket sheets can be used in a wide range of applications within the petrochemical sector, oil production, the chemical industry, the food industry and the mechanical engineering sector.
Chemical and thermal resistance: This type of flat gasket is widely used in all industrial applications involving contact with most chemicals, oils and gases at moderate temperatures and low pressures. The flat gasket made from FLEXSEALS® 500 can be used to seal water, oils, coolants and basic chemicals in the petrochemical and oil industries.
Excellent workability: easy to die-cut and CNC-cut, ensuring precision even for complex geometries.
Temperature and pressure resistance: Flat gaskets made from compressed, asbestos-free fibres are suitable for use at moderate temperatures and pressures, and offer good chemical resistance.
Operating temperature: up to +250°C, depending on the type of fluid, the pressure and the applied load.
| Compressed fiber | Flexseals 500 |
|---|---|
| Composition |
Carbon fibres and high quality NBR binder
|
| Minimum density DIN 28090-2 |
1.6 g/cm³
|
| Maximum density DIN 28090-2 |
1.9 g/cm³
|
| Maximum operating temperature |
250 °C
|
| Max recommended Peak Temperature |
450 °C
|
| Max operating pressure |
10 Mpa
|
| Leakage DIN 3535-6 |
0.05 mg*s-1*m-1
|
| Residual Stress* 16h/175 °C Din 52913 |
32 Mpa
|
| Compressibility ASTM F 36-J |
5-15 %
|
| Recovery ASTM F 36-J min. |
50 %
|
| ASTM OIL -IRM 903 5h/150 °C max ASTM F 146 |
3 %
|
| ASTM FUEL B 5h/23 °C max ASTM F 146 |
5 %
|
| Available sheets size |
1500x1500 mm
1500x3000 mm
|
| Available thickness |
from 0.5 to 5 mm
|
| Sheet size tolerance |
50 mm
|
| Thickness tolerance |
10 %
|
