Ptfe graphite packings

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Ptfe graphite packings

PTFE graphite packings are designed to provide the best sealing properties in harsh conditions. It consists of a mix of polytetrafluoroethylene (PTFE) and high-purity graphite. They have good thermal conductivity, low friction, and chemical resistance. They are great for dynamic and static sealing in industries where the product has to be tough and reliable.

PTFE Graphite Packings

Key Features of PTFE Graphite Packings

  • Good Lubrication: The presence of graphite will prevent friction from getting too high. This prevents components from wearing off.
  • Wide Operating Temperature Range: Can work efficiently between -200°C to 280°C.
  • Chemical Inertness: Resistant to chemical attacks such as acids, alkalis, and solvents.
  • Heat Transfer Ability: Excellent dissipation of heat for extended service life in elevated temperatures.
  • Non-sticking: PTFE has inherent non-stick properties that avoid accumulation and fouling.

Packing Applications of PTFE Graphite

  • Pumps and Valves: Offers sealing reliability in rotary and reciprocating pumps and valves.
  • Chemical Processing: Leak-tight operation in corrosive conditions.
  • Pharmaceutical Industry: Suitable for hygienic sealing in sensitive applications.
  • Power Plants: Suitable for high-temperature steam and thermal oil systems.
  • Food and Beverage: Non-toxic and compliant with food-grade requirements for sealing in food processing equipment.

Benefits of PTFE Graphite Packings

  • Long Service Life: The PTFE component provides the toughness while the graphite imparts strength and lubricity.
  • Low Maintenance: Low friction prevents wear and tear, and extends the service life of the equipment.
  • Wide Applicability: Suitable for both static and dynamic applications.
  • Eco-Friendly: Non-toxic and free from harmful substances, hence safe for use in various industries.
  • Customizable Sizes: Available in various dimensions to meet specific application requirements.

People also ask

  • What is PTFE graphite packing used for?
  • PTFE graphite packing is used for sealing applications in pumps, valves, and equipment exposed to high temperatures and aggressive chemicals.
  • Can PTFE graphite packing handle steam applications?
  • Yes, it is excellent for steam applications because of its high thermal conductivity and resistance to high temperatures.
  • Is PTFE graphite packing food-grade?
  • Yes, some grades of PTFE graphite packing are food-grade and suitable for use in the food and beverage industry.
  • How is PTFE graphite packing installed?
  • It is usually cut into rings or coils and carefully fitted into pump or valve stuffing boxes for effective sealing.
  • Is it abrasion resistant?
  • Yes. The PTFE and graphite impregnation provide for a very resilient surface that holds up well against wear in dynamic applications.