Pilotpack 3435


PILOTPACK 3435 Packing is manufactured from superior performance graphited ePTFE yarn, then braided using the ‘Crossplait’ technique of manufacture.

This produces packing that has high thermal conductivity removing heat from the running surface, which ensures cooler running packing so increasing service life.

The yarn has been specially developed using graphited PTFE with high-temperature lubricant that is an integral component of the yarn. This process ensures that the lubricant cannot be washed or leached out as can occur with some coated yarns


  • Designed to operate on high-speed rotary and reciprocating applications
  • Operates at high pressure with normal gland clearances
  • Excellent thermal conductivity combined with a low coefficient of friction
  • Minimal shaft wear combined with excellent abrasion and chemical resistance
  • High-temperature resistance combined with good dimensional stability

Chemical Compatibilities

  • For the pH range 0-14, the packing is chemically inert.

Sizes Available

  • All square sections are available from 3mm (1/8”) to 25mm (1”) are generally available from stock in differing lengths depending on the cross-section. Larger and rectangular sections can also be manufactured to order. PILOTPACK 3435 packings can also be supplied in preformed or die formed rings.

Rotating applications

Speed: 25 m/s
Temperature range: -240 to 120˚C
Maximum pressure: 25 bar

Valve applications

Speed: 2 m/s
Temperature range: -240 to 120˚C
Maximum pressure: 350 bar

Reciprocating applications

Speed: 2 m/s
Temperature range: -240 to 290˚C
Maximum pressure: 200 bar

PTFE Design

Beldam Crossley can create PTFE products to your specification, creating a product with the correct PTFE grade material that works best for your application.

Contact our team of design engineers with your requirements and see how we can help you.


Beldam Crossley has been moulding PTFE for over half a century. We have since developed a wide range of High Performance Crossflon® materials, each suited to a specific application.

Pilotpack 3435. High performance industrial packing manufactured from ePTFE with graphite.