Graphite composite gaskets, also known as flexible graphite metal-reinforced composite gaskets or high-strength graphite gaskets, are sealing gaskets made by pressing together punched metal tooth plates or perforated metal core plates with flexible graphite particles. They are typically fabricated from flexible graphite composite reinforcement sheets.

Graphite composite gaskets are composed of punched metal tooth plates or metal mesh plates combined with expanded graphite particles under compression. They are usually cut or stamped from reinforced graphite sheets using specialized gasket cutting equipment. Commonly used internal reinforcement materials for the graphite composite gaskets include SS304, SS316, or Monel, with a thickness ranging from 0.05mm to 0.2mm. They come in various forms such as punched metal tooth plate-reinforced composite gaskets, mesh plate-reinforced composite gaskets, and flat plate-reinforced composite gaskets.

Graphite composite gaskets have excellent corrosion resistance, high/low-temperature resistance, radiation resistance, good compression resilience, and high strength. They require less preload force compared to metal gaskets and metal spiral wound gaskets, and have lower requirements for flange surfaces. They are a cost-effective and practical gasket option. If equipped with edge wrapping, the graphite composite gaskets can retain their excellent performance while being easy to install and dismantle, resistant to damage, and capable of preventing oxygen erosion from the medium and external air, thereby enhancing temperature and pressure resistance.

Graphite composite gaskets come in different structural types, including RF type, MFM type, and TG type, which are suitable for flat face, raised face, and tongue and groove flanges, respectively. RF type gaskets can be equipped with stainless steel or carbon steel inner wrapping, known as RF-E type.