OVERVIEW: The Tefbellows is an expansion joint that combines the properties of metal and PTFE into the most advanced, versatile expansion joint available. Normal design temperatures from -300F to +400F, in pressure ratings of 50, 150, and 300psi or higher. Great for highly corrosive chemical-petrochemical systems at elevated temperatures.

Unlike ordinary solid PTFE of elastomeric type expansion joints like our Tefspool, should up-set conditions exceed 500F, the Tefbellows will retain it’s pressure carrying capacity up to 1200F, sufficient time for system shut-down and replacement.

The integral PTFE liner follows the metal bellows convolutions, which can be made of 316 stainless steel, Inconel, and other metals.

Contact the factory with your requirements.


  • Integral PFTE liner follows metal bellows convolutions


  • Highly corrosive service with higher pressures or temperatures

TEMPERATURE: -300 to 400° F

PTFE Lined Metal Bellows Expansion Joint for Chemicals