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Improve Seal Performance in Aggressive Media Applications

FFKM test comparison
Now Available from Humphrey Products: 350/351 iDP Valves with FFKM Elastomer
FFKM (left) exhibits less volume swell than standard elastomer (right) in aggressive media applications.

Kalamazoo, MI – While o-rings and sealing components made from other elastomers are prone to failure when exposed to caustic and hazardous media, FFKM (perfluoroelastomer) offers near-universal chemical compatibility.

With superior inert properties, FFKM resists extreme volume swell when exposed to more than 1,800 chemicals, solvents and plasmas, including:

  • concentrated nitric acid
  • sodium hydroxide
  • ethylene diamine

FFKM elastomers can withstand the harshest conditions, including environments such as those found in semiconductor manufacturing where oxygen plasma is present and medical use where aggressive agents are used for sterilization.

FFKM Features

  • Excellent chemical resistance (best in class, similar to PTFE)
  • Excellent gas and liquid permeation resistance
  • Excellent weather ability and ozone resistance
  • High Density
  • Good mechanical properties, improving sealing performance

The addition of FFKM to the 350 series iDP family allows engineers to use one valve style in a system that applies both aggressive media and lighter liquids. Aggressive circuits may use the 350/351 series with FFKM elastomers, while less aggressive circuits may use the cost-effective FKM and EPDM versions of the same valve. 

The proven reliability of FFKM seals in demanding applications may also allow for longer preventative maintenance schedules. The net result – lower costs from less maintenance. At the same time, process throughput, productivity and yields are enhanced from increased equipment uptime.

For more information, contact Humphrey Products online or call 1.800.477.8707

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idp 350-351 blog image


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