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Lionpak® 2505

PTFE / carbon yarn packing for frequently operated control valves.

  • Valves

Lionpak 2505 is a state-of-the-art gland packing especially developed for hard-working control valves.

This packing operates efficiently under arduous operating conditions where high resilience, high mechanical strength and high tensile strength are required.

The core of the packing is high strength carbon yarn, heavily lubricated with a special fluoropolymer dispersion and also treated with an inorganic passive corrosion inhibitor. The outer jacket is braided from pure PTFE yarn, lubricated with a PTFE suspensoid.

  • Construction provides optimum leakage control in hard-working control valves
  • Mechanically and thermally stable
  • Very high recovery factor
  • PTFE suspensoid acts as a blocking agent
  • Dissipates heat without chemical hardening
  • Easy to install, with smooth removal at shutdown

  • Control valves and plug valves - especially those that are frequently operated
  • Suitable for use with hydrocarbons, petrochemicals, superheated steam, saturated steam, organic/inorganic chemicals, acids and alkalis, solvents, amides, fuel oil, lubricating oil, dyestuffs, paints, and synthetic resins

Valve Stem Duties

  • Maximum operating temperature: +260°C (+500°F)
  • Minimum operating temperature: -200°C (-328°F)
  • Maximum system pressure: 30 MPa/300 bar (4351 psi)

Compatible with media in the range of pH 0-14, excluding strong oxidising agents.

  • All popular square sections from 6.5 mm (1/4") to 50 mm (2") in boxes containing 8 m (26' 3") in coil form or on spools as detailed in the product datasheet
  • Also supplied as split preformed rings and sets
  • Please refer to the product datasheet for spool ordering information
Related Downloads

Compression packing fitting guide

English pdf (502 KB) Download

Lionpak 2505 datasheet

English pdf (288 KB) Download

Compression packing guide

Our constant advances in materials and lubricants, product design and manufacturing techniques, keep us at the forefront of compression packing technology. We therefore bring you one of the widest ranges of packings to match the temperatures, pressures and speeds of your most modern fluid handling systems, and economical packings for your older plant.

Find out more
Compression packing guide

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