GYLON® Style 3522

100% PTFE diaphragm offering the longest service life in the industry

Exclusive to Garlock, the GYLON® PTFE Diaphragm material is made using a proprietary process that optimizes quality and uniformity. Using the best available technology, this material offers the longest service life in the industry and continues to outperform all competitive materials. GYLON® PTFE diaphragms offer the highest performance, lowest permeability, lowest creep, and longest flex life available and can be used in all diaphragm pump types.



Features & Benefits

  • Chemical and temperature resistant – withstands aggressive chemicals and temperatures up to +500°F / +260°C.
  • Flexibility – up to four times the flex life of conventional PTFE
  • Reduced Void Content – results in less permeation, increased life, reduced potential for cross-contamination of process media
  • Cost savings – longer diaphragm life means increased process uptime and decreased labor costs
  • Environmental Stewardship – improved equipment efficiencies, better protection of downstream equipment and minimized batch contamination due to more reliable diaphragm
  • Conforms to FDA regulations


  • Max. Temperature: 500°F / 260°C
  • Max. Pressure: 800 PSI / 55.16 bar
  • 3A Standard, NSF 61 Standard, USP Class VI Chapter 87 & 88, USP Part 31, 281 and 661


  • Strong caustics
  • Strong acids
  • Hydrocarbons
  • Chlorine
  • Cryogenics
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