Composition
Middle rings: Expanded mineral graphite impregnated with 5% PTFE dispersion
Top & Bottom rings: Graphite braid style GR80SGR impregnated with 5% PTFE dispersion
Characteristics
- Compliant with Class 3 of ASTM F2168 and F2191 for stem sealing.
- Low friction coefficient combined with good elastic recovery.
- Low permeability and strong resistance to aging.
- Can easily operate with all industrial fluids in high-pressure and high-temperature services.
- Cannot be used with oxidizing fluids.
Applications
Controller 2 Evo PTFE is specifically designed for low-emission service in industrial valves, offering reliable and long-lasting performance in demanding environmental conditions.
