+44 (0) 1420 474123
£ British Pound Sterling (GBP)
Change currency:
  • € Euro (EUR)
  • Rs. Indian Rupee (INR)
  • zł Polish Zloty (PLN)
  • $ US Dollar (USD)
You have no items in your shopping cart.
Free Delivery for orders under 15 - Select Free Shipping at the checkout process

PTFE Backup Oring

P.T.F.E. Polytetrafluorethylen Rubber Backup Rings

PTFE Backup O Rings

Trade names include Teflon, Syncolon, Fluon, Poly (ethylene tetrafluoride)

Back-up rings are used in conjunction with O-Ring for both static and dynamic sealing applications.

The design of PTFE Back-up rings it used to overcome the problems of 'O'-Ring extrusion when the system pressures are greater than the sealing capabilities of an unsupported 'O'-Ring.

The use of P.T.F.E. for anti-extrusion rings has many advantages over 'hard rubber' materials, particularly at system pressures.

The cold flow characteristics of PTFE are used to full advantage in reducing the extrusion gaps to a minimum and allowing automatic compensation for wear.

The capability of specialist compounding to suit extremes of duty combined with a high resistance to virtually all chemicals, low friction and wear rates render PTFE as the ideal material for anti-extrusion devices.