GASKET
Flexible Graphite / Graphoil Rings
Flexible Graphite (often referred to by the trade name Grafoil) is an extraordinary sealing material manufactured from pure, exfoliated graphite flakes. Through specialized compression, it forms a cohesive material that possesses zero volatile binders or resins, making it entirely immune to aging, embrittlement, or cold flow under extreme temperatures.
Key Materials
- Pure Exfoliated Graphite (98% to 99.5%+)
Primary Industries
- Power Generation
- Nuclear
- Petrochemical
Our Die-Formed Graphite Rings are precision-compressed to exact densities, providing a flawless seal for high-pressure valves and pumps. They are the premier choice for hazardous fluid containment and strict EPA fugitive emission compliance.
Purity and Performance
We offer standard industrial grade (98% carbon) and premium nuclear grade (99.5%+ carbon) graphite. Because flexible graphite contains no binders, it will not bake out or harden over time, ensuring a reliable, long-lasting seal that reduces maintenance interventions.
Structural Reinforcements
For extreme pressure applications where extrusion is a concern, we manufacture graphite rings featuring internal stainless steel wire mesh or outer metallic caps (wiper rings), drastically increasing the mechanical strength of the packing set.
Key Advantages
Technical Specifications
| Parameter | Specification |
|---|---|
| Max Temperature (Oxidizing) | Up to 500°C |
| Max Temperature (Reducing) | Up to 3000°C |
| Density | 1.2 to 1.8 g/cm³ |
Applications
- Valve stem packing
- High-temperature flange seals
- Heat exchangers and boiler gaskets
- Fugitive emission control
Standards
Available Sizes
- Die-formed to exact valve stem dimensions