PTFE Expansion Joints

NOTE: Joints sizes 2-12″ I.D. are lined with PTFE.
Sizes 14″ and above are lined with FEP.



Our PTFE expansion joints are made from the synthetic material Polytetrafluoroethylene.  This non-reactive material is widely used in pipelines within the chemical manufacturing industry and acts as a protective agent against highly corrosive substances and high temperatures.

  • Hand-crafted solid-molded PTFE
  • -300°F degrees to 400°F degrees operating temperature
  • Full vacuum rated to 178 psi, depending on design
  • FDA compliant 21 CFR, Part 177, Subpart B, Section 177.1550
  • Highly resistant to corrosion
  • Withstands chemicals, steam, gases
  • Tie Rods prevent over-extension
  • Covers available: EPDM, Neoprene, Metal, Viton™
  • Custom designs available
  • Made in the USA



PRODUCT FAMILIES










  • The excellent chemical resistance of PTFE combined with the flexibility of rubber
  • Thermal stability
  • Anti-stick properties
  • Available in multi-arch, taper, offset and special constructions






Design Style 9500

  • Combines the properties of metal & PTFE
  • Heavy duty PTFE protects against highly corrosive chemicals
  • Absorbs pipe movement and stress
  • Isolates mechanical vibration
  • Reduces system noise
  • Protects against surge forces






Design Styles 112, 113, & 115

  • Designed to withstand high pressures & temperatures
  • Ideal for installation where space is limited
  • Lightweight and corrosion resistant
  • Available in sizes 1″ to 12″ diameter
  • Temperature rating -300°F to 400°F



“Super-Quiet” Styles 3150 (150 psi WP) and 3250 (250 psi WP) sound absorbers are built with molded rubber flanged ends with bolt holes that accommodate standard steel flanges. Available with or without helical wire reinforcement. Special tubes can be made to meet unique requirements for either suction or discharge.

Unalon Series 8000 PTFE combines the corrosion resistance of PTFE with the pressure and safety characteristics of PTFE with the pressure and safety characteristics of stainless steel, corrugated hose and braid available with standard, metric or special flanges.  Unis can also be provided with floating flanges to facilitate installation.   Lengths up to 50 feet available.

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