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Saunders PTFE Diaphragms

Saunders® Industrial PTFE diaphragms are a robust two piece leaf type design incorporating a virgin PTFE wetted face with a fabric reinforced elastomer support backing.

Saunders® has front to back ownership of all phases of diaphragm development and manufacture; all aspects of Saunders® diaphragms have been designed, tested and optimized, by Saunders®' team of in-house polymer technologists, to provide the highest level of in-service performance.

  • 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
 Saunders® Pb PTFE/IIR
  • Typical Applications: Concentrated Acids & Alkalis, Caustic Soda

Saunders® Pe PTFE/EPDM

  • Typical Applications: Concentrated Acids & Alkalis


  • Typical Application: Chlorinated solvents

Saunders® Pc Aggressive Chemical

  • Typical Application: Strong acids, Chlorine, Bromine at high temperature

Saunders® Kc Chlorine

  • A Type: DN015 - DN250

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