You are currently viewing the James Walker Global website.

Lionpak 2506 banner

Lionpak® 2506

PTFE / graphite and carbon packing for excellent abrasion and chemical resistance.

  • Pumps
  • Valves

Lionpak 2506 is an enhanced braided packing of expanded PTFE with high quality graphite entrapped in the porous structure of the PTFE resin and with tough carbon fibres at the corners to resist abrasion with minimal shaft wear.

The product is further lubricated with molybdenum disulphide (MoS2).

  • A dense packing offering a high degree of dimensional stability
  • The graphite provides heat dissipation to enhance the product's long and efficient working life, which is also improved by the excellent thermal conductivity of molybdenum disulphide
  • Molybdenum disulphide provides good chemical resistance and enhances high speed rotary operations by minimising friction and wear
  • The carbon fibre at the corners provides excellent abrasion resistance particularly in chemical slurries
  • The product construction enables the packing to safeguard shaft/shaft sleeves from wear and erosion

  • Centrifugal and reciprocating pumps, valves, large diameter shafts, reactor vessels, agitators, mixers and autoclaves,suitable for duties with acids and alkalis of any concentration, phosphoric acid, hydrocarbons, solvents, raw water, demineralised water, condensate and cooling water
  • Also suitable for all types of slurries particularly chemical slurries, effluent, sewage as well as caustic and industrial water

Valve Stem Duties

  • Maximum operating temperature: +260°C (+500°F)
  • Minimum operating temperature: -100°C (-148°F)
  • Maximum system pressure: 25 MPa/250 bar (3626 psi)

Centrifugal Pumps and Rotary Equipment

  • Maximum operating temperature: +260°C (+500°F)
  • Minimum operating temperature: -100°C (-148°F)
  • Maximum system pressure: 2 MPa/20 bar (290 psi)
  • Maximum shaft speed: 22 m/s (4331 fpm)

Reciprocating Pumps and Rams

  • Maximum operating temperature: +260°C (+500°F)
  • Minimum operating temperature: -100°C (-148°F)
  • Maximum system pressure: 10 MPa/100 bar (1450 psi)
  • Maximum rod speed: 2 m/s (394 fpm)

Resistant to chemicals in the range pH 0-14, excluding strong oxidisers, molten alkali metals and fluorine compounds.

  • 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 2506 datasheet

English pdf (410 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

Expert to Expert

Want to discuss your project, engineering or materials challenge expert to expert? Simply provide us with your contact details and a little information about the application you are working on, and one of our experts will contact you as soon as possible.

Contact us