This high-performance valve stem sealing solution features a primary spring-energized PTFE or PEEK seal, backed by a secondary metallic V-set for anti-extrusion and stability. Engineered for extreme service, it operates reliably from -60°C to 200°C, withstands pressures up to 200 MPa, and provides virtually universal chemical resistance, making it ideal for demanding chemical processing, oil & gas, and supercritical fluid applications.