SAUNDERS® High Performance PTFE Diaphragms

Saunders® IDV High Performance PTFE Diaphragms are a robust two piece leaf type design incorporating a virgin PTFE wetted face with a fabric reinforced elastomer support backing.

Features And Benefits

  • Unique stainless steel bayonet fitment; reduces point loading, improves sealing performance and facilitates correct diaphragm installation
  • Third generation two-piece construction increases pressure rating and enhances durability, providing a longer diaphragm lifetime
  • 100% virgin PTFE contact face is chemically inert, offering improved corrosion resistance and extending diaphragm lifetime in the most aggressive of services

Technical Details


  • A Type: DN015 – DN250


Saunders® Pb PTFE/Butyl

  • Concentrated Acids & Alkalis, Caustic Soda

Saunders® Pe PTFE/EPDM

  • Concentrated Acids & Alkalis


  • Chlorinated solvents

Saunders® Pc Aggressive Chemical

  • Strong acids, Chlorine, Bromine at high temperature

Saunders® Kc Chlorine

  • Wet Chlorine