Expanded graphite

Expanded Mineral Graphite Jointing Sheets – High-Performance Sealing Solutions

The Flexigraf® gasket line offers a reliable and high-performance sealing solution for applications requiring resistance to high temperatures, chemical stability, and long-term durability. Made from high-quality expanded graphite, these gaskets provide excellent conformability, reducing the risk of leaks even under demanding operating conditions.

Thanks to their high thermal resistance, graphite gaskets can operate at temperatures up to 600°C and pressures up to 200 bar, while maintaining an optimal seal on flanges and industrial equipment.

Flexigraf® Product Range

Planichem has developed various solutions within the Flexigraf® product line, each tailored to meet specific application needs.

Flexigraf® FGS

High-purity laminated graphite Jointing Sheets, available with reinforcements in stainless steel, nickel, aluminum, and other materials. These products are ideal for:

Sealing high-temperature saturated steam
Applications with aggressive non-oxidizing chemical agents

MULTIFLEX

A multilayer solution that enhances mechanical strength, improving seal durability and pressure resistance. This variant can withstand extremely high pressures, making it ideal for extreme applications.

Unigraph®

High-purity graphite Jointing Sheets, available in various densities and treated with special technopolymers to improve thermal stability.

High workability and easy cutting
Ideal for sealing saturated steam and aggressive non-oxidizing chemicals

Advantages of Expanded Graphite Jointing Sheets

High-temperature resistance – Maintains sealing properties up to 700°C, with resistance to even higher temperatures in oxygen-free environments.
Excellent chemical stability – Compatible with most industrial chemicals.
Superior conformability – Perfectly adapts to irregular flange surfaces.
Long operational lifespan – Resistant to aging and oxidation.
Suitable for high-pressure conditions – Up to 300 bar in reinforced versions.

Key Applications

Flexigraf® expanded graphite Jointing Sheets are particularly suitable for:

Refineries and petrochemical industry – Ideal for processes involving steam and aggressive fluids.
Power generation – Used in turbines, heat exchangers, and power plants.
Chemical industry – Perfect for sealing reactors and pipelines exposed to highly corrosive substances.
Pulp and paper industry – Resistant to hot and chemically active fluids.

For enhanced oxidation resistance, certain graphite gasket variants can be equipped with metal reinforcements or anti-oxidation treatments, extending their lifespan in oxidizing environments.

Flexigraf® Jointing Sheets are the ideal choice for those seeking a reliable, durable, and high-performance sealing solution for industrial applications.

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