​PTFE Bellows Mechanical Seal​ is a dynamic sealing component with polytetrafluoroethylene (PTFE) as its core material, specifically designed to address leakage issues under extreme operating conditions. Its core characteristics include:

• ​Corrosion Resistance: Resistant to strong acids (such as aqua regia, hydrofluoric acid), strong bases, and organic solvents.
• ​Temperature Resistance: Operating temperature range from ​​-200°C to 260°C, with short-term tolerance up to ​300°C.
• ​Self-lubricating Property: Friction coefficient as low as ​0.02, requiring no additional lubrication, suitable for high-speed (30 m/s) and oil-free environments.
• ​Structural Innovation: Utilizes a bellows design to compensate for axial vibration, with sealing pressure up to ​3 MPa​ (dual-lip structure).

Primarily applied in harsh scenarios such as chemical reactors, oil and gas pipelines, and pharmaceutical sterile systems to achieve zero-leakage sealing.