Flexigraf FGS1

Products Gasketing sheets and Gaskets Expanded graphite

Flexigraf FGS1

FLEXIGRAF® FGS1 is a gasketing sheet for flat gaskets, made of pure expanded mineral graphite, reinforced with a smooth nickel foil insert. The composition, based on pure graphite and reinforced with nickel, offers greater corrosion resistance, ductility and hardness. The nickel insert is ideal for its high chemical resistance in highly corrosive environments (strong acids, aggressive solvents, chlorine, etc.).

High thermal resistance: graphite is known for its electrical conductivity and low thermal conductivity, making it suitable for applications involving high-temperature vapours.

Superior stability and flexibility: the nickel backing sheet provides a solid structure, giving the gasket additional mechanical strength and stability, thereby improving its performance in the most demanding applications.

Excellent workability: easy to die-cut and CNC-cut, ensures precision even for complex geometries.

High resistance to high temperatures and pressures: Reinforced graphite flat gaskets are used for their high resistance to temperatures and pressures, as well as their good chemical resistance. Some of the main applications include: the chemical and petrochemical industries, for sealing in aggressive environments where resistance to chemicals is crucial. They are ideal for use in plants operating with saturated and superheated steam, or in applications requiring materials capable of withstanding very high temperatures without losing their mechanical properties.

Operating temperature: up to +550°C depending on the type of fluid, pressure and applied load.

Expanded graphite Flexigraf FGS1
Composition
Graphite laminate reinforced with a pure nickel foil core
Minimum density DIN 28090-2
1 g/cm³
Maximum density DIN 28090-2
1.2 g/cm³
Min recommended Peak Temperature
-200 °C
Max recommended Peak Temperature
550 °C
Max operating pressure
180 bar
Leakage DIN 3535-6
≤0.1 mg*s-1*m-1
Creep relaxation DIN 3535-6
≤5 %
Compressibility DIN 3535-6
30-45 %
Recovery DIN 3535-6
3-7 %
Available sheets size
1500x1500 mm
1000x1000 mm
1500x1000 mm
Available thickness
0.50 ÷ 3.00 mm
Sheet size tolerance
50 mm
Thickness tolerance
10 %