FFKM O-rings EN7LT

close
FILTERS
Inner Diameter (mm) expand_less
Cord Thickness (mm) expand_less
Hardness (Shore A) expand_less

 

 

19063 products
Most sold arrow_drop_down
ProductDimensionsMaterialHardness (Shore A)CertificationStock
Placeholder O-ring Black492 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 99x4.5 Kalrez-FFKM - 75 Shore A - Black - SES-775283 O-ring Black99 mm  x 4.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 2x1.4 Kalrez-FFKM - 75 Shore A - Black - SES-617325 O-ring Black2 mm  x 1.4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 43x1.6 Kalrez-FFKM - 75 Shore A - Black - SES-621448 O-ring Black43 mm  x 1.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 177.5x10 Kalrez-FFKM - 75 Shore A - Black - SES-625610 O-ring Black177.6 mm  x 10 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 842x7 Kalrez-FFKM - 75 Shore A - Black - SES-629701 O-ring Black843 mm  x 7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 161x6 Kalrez-FFKM - 75 Shore A - Black - SES-776106 O-ring Black161 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 15.5x4 Kalrez-FFKM - 75 Shore A - Black - SES-619076 O-ring Black15.5 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.3x1.1 Kalrez-FFKM - 75 Shore A - Black - SES-617724 O-ring Black5.3 mm  x 1.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 49.28x2.67 Kalrez-FFKM - 75 Shore A - Black - SES-621833 O-ring Black49.29 mm  x 2.67 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 202.57x5.33 Kalrez-FFKM - 75 Shore A - Black - SES-625995 O-ring Black202.58 mm  x 5.33 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 3.86x1.19 Kalrez-FFKM - 75 Shore A - Black - SES-772232 O-ring Black3.86 mm  x 1.19 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 202.5x3.6 Kalrez-FFKM - 75 Shore A - Black - SES-776492 O-ring Black202.6 mm  x 3.6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 23.9x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-619963 O-ring Black23.9 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 112x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-624135 O-ring Black113 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 399x5 Kalrez-FFKM - 75 Shore A - Black - SES-628230 O-ring Black399 mm  x 5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 63.4x0.99 Kalrez-FFKM - 75 Shore A - Black - SES-774637 O-ring Black63.5 mm  x 0.99 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 14x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-618887 O-ring Black14 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 27.4x3 Kalrez-FFKM - 75 Shore A - Black - SES-620298 O-ring Black27.5 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 122x2 Kalrez-FFKM - 75 Shore A - Black - SES-624406 O-ring Black123 mm  x 2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 443x4 Kalrez-FFKM - 75 Shore A - Black - SES-628569 O-ring Black443 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 78.5x2.62 Kalrez-FFKM - 75 Shore A - Black - SES-774912 O-ring Black78.6 mm  x 2.62 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 76x1.5 Kalrez-FFKM - 75 Shore A - Black - SES-623020 O-ring Black76 mm  x 1.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 291.4x3.53 Kalrez-FFKM - 75 Shore A - Black - SES-627181 O-ring Black291.5 mm  x 3.53 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 23.74x0.61 Kalrez-FFKM - 75 Shore A - Black - SES-773458 O-ring Black23.75 mm  x 0.61 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 373x8 Kalrez-FFKM - 75 Shore A - Black - SES-777698 O-ring Black374 mm  x 8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 32.7x1.78 Kalrez-FFKM - 75 Shore A - Black - SES-620736 O-ring Black32.8 mm  x 1.78 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 139.2x5.7 Kalrez-FFKM - 75 Shore A - Black - SES-624845 O-ring Black139.3 mm  x 5.7 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 512x6 Kalrez-FFKM - 75 Shore A - Black - SES-629011 O-ring Black512 mm  x 6 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 103.5x4.2 Kalrez-FFKM - 75 Shore A - Black - SES-775355 O-ring Black103.6 mm  x 4.2 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 63.5x3.5 Kalrez-FFKM - 75 Shore A - Black - SES-622530 O-ring Black63.6 mm  x 3.5 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
Placeholder O-ring Black252 mm  x 10 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 14x2.1 Kalrez-FFKM - 75 Shore A - Black - SES-772954 O-ring Black14 mm  x 2.1 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 19.71x1.88 Kalrez-FFKM - 75 Shore A - Black - SES-619538 O-ring Black19.72 mm  x 1.88 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 95x2.65 Kalrez-FFKM - 75 Shore A - Black - SES-623646 O-ring Black95 mm  x 2.65 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 345x4 Kalrez-FFKM - 75 Shore A - Black - SES-627746 O-ring Black346 mm  x 4 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 6.07x1.27 Kalrez-FFKM - 75 Shore A - Black - SES-617832 O-ring Black6.07 mm  x 1.27 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 51.8x1.8 Kalrez-FFKM - 75 Shore A - Black - SES-621948 O-ring Black51.9 mm  x 1.8 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 210x3 Kalrez-FFKM - 75 Shore A - Black - SES-626116 O-ring Black210 mm  x 3 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon
O-Ring 5.4x1.52 Kalrez-FFKM - 75 Shore A - Black - SES-772362 O-ring Black5.4 mm  x 1.52 mm FFKM - FFPM75 Shore A Neeicon-bekijk icon

To provide even greater thermal stability and solvent resistance, tetrafluoroethylene (TFE) containing fluoroelastomer terpolymers were introduced in 1959. The latest FKM polymers have a much broader fluids resistance profile than standard fluoroelastomers, and are able to withstand strong bases and ketones as well as aromatic hydrocarbons, oils, acids, and steam. In 1975 a new fluoroelastomer family was introduced by Asahi Glass Co., FEPM, based on an alternating copolymer of TFE and propylene. It is marketed under the trade name AFLAS®.

The chemical resistance and high-temperature stability is due to the bulkiness of the fluorine atoms, shielding the polymer backbone and carbon-fluor bond from attack, and the high bonding energy of the carbon-fluor bond.

FFKM gives the indication for the types of improved properties for different applications.


Material: Fluorocarbon elastomers
Fluorocarbon rubber is an elastomer

Fluorocarbon elastomers are highly fluorinated carbon-based polymers that are used in applications that must withstand aggressive chemical and ozone attacks.

In general, with increasing fluorine content, the resistance to chemical attack is improved, while the low temperature properties decrease. However, there are special quality fluorocarbons that do have a high fluorine content at low temperature properties.

Good qualities:

  • Chemical compatibility
  • Good temperature resistance
  • Low compression setting
  • Resistant to minerals, oils and fats
  • Good gas tightness
  • Excellent resistance to non-polar media
  • Excellent weather and aging stability
  • Very good oxygen and ozone stability
  • Operating temperature range from -26 °C to +205/230 °C (-15 °F to +400/440 °F)
  • When used briefly, the material can tolerate even higher temperatures
  • Special compounds with improved chemical resistance are available
  • Brake fluids based on glycol
  • Low molecular weight organic acids

FFKM
FFKM are perfluoroelastomeric compounds that contain an even greater amount of fluorine than FKMO fluoroelastomers.

FFKM have an improved resistance to high temperatures and chemicals and are even resistant to environments where oxygen plasma is present for many hours. Certain grades have a maximum continuous service temperature of 327 °C / 621 °F. They are often used to make o-rings and gaskets that are used to make o-rings and gaskets that are used in applications where contact with hydrocarbons or highly corrosive liquids the case, or when a wide temperature range is encountered.

On this page we offer our range of N7LT certified  O-Rings. Search for your specific O ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our N7LT  certified made from FFKM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.