Perfluoroelastomer (FFKM) is a seal material type which has a much higher temperature rating than the more common FKM and can be used on temperatures up to 300°C. FFKM also has a broader chemical resistance than FKM.
FFKM is typically used to seal components which are designed to withstand media temperatures up to 300°C. FFKM is also used as an alternative seal material when the standard fitted seal material is not chemically compatible with the process media.
FFKM is a more expensive material than FKM and therefore it is only used in the construction of measurement equipment when it is absolutely necessary to meet the application requirements.
Kalrez®, Chemraz®, Perlast® and Simriz® are all well known brands of FFKM material used to manufacture O ring seals.
FFKM seals have the best chemical compatibility out of all the elastomers with almost universal chemical resistance.
LMK 806 Plastic 21mm diameter Submersible Level Probe
Chemical Resistant Hydrostatic Liquid Level & Pressure Sensors
Ferric Chloride solution hydrostatic level transmitter
LMK331 Screw-In Ceramic Level Transmitter
Request info on chemical resistant measurement products for your application.
Media Compatibility Related Terms
More pages related to media compatibility technical terms.
- Air Pressure
- Al2O3
- Bonded Seal
- Dry Cell
- Dry/Dry
- EPDM – Ethylene Propylene Diene Monomer
- FEP – Fluorinated Ethylene Propylene
- FKM – Fluoroelastomer
- Food Grade
- High Temperature Protection
- Hydrostatic Pressure
- IP Ratings
- Oxygen Service
- PUR, PU – Polyurethane
- PVC – Polyvinyl Chloride
- Stainless Steel Pressure Sensors
- Submersible
- Wet/Dry
- Wet/Wet
- Wetted Parts