PTFE impregnated asbestos valve packing

 Asbestos PTFE Packing Data Sheet 

Asbestos PTFE packing, also known as PTFE impregnated asbestos packing, is designed for sealing tasks that require both mechanical durability and reduced friction. The asbestos core provides a firm, heat-resistant structure, while the PTFE impregnation fills surface voids, improving chemical compatibility and ensuring smooth operation in valves and rotating equipment. This construction makes the packing particularly suitable for asbestos valve packing applications in process plants and utility systems.

 Key Features 

• · Reinforced Mechanical Strength: Asbestos fibers create a dense, stable braid capable of withstanding high pressures and maintaining shape under compression.
• · PTFE-Enhanced Lubricity: The PTFE impregnation minimizes shaft friction, reduces start-up heat, and increases service life in both slow- and moderate-speed applications.
• · Reliable High-Temperature Performance: The asbestos structure remains stable under elevated temperatures, making it suitable for steam lines, oil circuits, and thermal equipment.
• · Chemical Resistance: PTFE improves compatibility with acids (non-oxidizing), alkalis, oils, solvents, and many industrial fluids, expanding its range of safe applications.
• · Improved Sealing Efficiency: The PTFE-filled matrix creates a tighter sealing surface, reducing media leakage and keeping maintenance intervals longer.

 Applications 

1. 1. Designed for gate valves, globe valves, and regulating valves exposed to steam, hot oil, or process fluids.
2. 2. Suited for general-purpose pumps in chemical processing, petrochemicals, water systems, and utility plants.
3. 3. Provides stable performance in high-temperature steam service and heating circuits.
4. 4. Ideal for pumps and valves managing lubricating oils, fuel oils, and hydrocarbon streams.
5. 5. Compatible with mixers, compressors, and slow-moving rotary equipment requiring a firm but lubricated sealing interface.

The combination of asbestos strength and PTFE lubricity provides a dependable sealing solution for facilities operating under variable pressure, high temperature, and chemically demanding environments.