ePTFE-packing made from expanding PTFE with incorporated white filler, with silicone oil as lubricant

  • Article Number: 1737
  • Material: 1737
  • Profile: PG/PR
  • No colour contamination of media due to abrasion.
  • Packing complies with FDA requirements for use as sealing material in food industry.
  • In comparison to pure PTFE lower heat strain and higher heat conductivity, hence longer service life and more shaft-friendly.
  • High chemical resistance, similar to pure PTFE. Incorporated white filler is also resistant against oxidising acting acids, therefore can be used instead of formerly used blue asbestos-acid packings.
Article Number


Temperature (min.) -269 °C
Temperature (max.) 260 °C
Density approx. (g/cm³) 1.6 g/cm³
Material structure ePTFE
Waterproofing PTFE
Lubricant yes
K-factor 0.9

Range of applications

Piston pump (Vg) 2 m/s
Piston pump (p) 100 bar
Impeller pump (Vg) 20 m/s
Impeller pump (p) 25 bar
Valves (Vg) 2 m/s
Valves (p) 100 bar


abrasive and sticky media conditionally suitable
Water, domestic water, sea water suitable
Hot water, boiler dining water suitable
Vapen, acid gases, nitrogen suitable
oxygen not suitable
Mineral oils, animal fats suitable
Heat carrier oils, synthetic oils suitable
Alcalia diluted, salt solutions not suitable
Alcalia concentrated not suitable
Anorg. Diluted acids, salt solutions suitable
Anorg. Acids concentrated suitable
Solvent, otherwise. Organ. Verb. suitable
Lacques, colors (silicone -free) not suitable

Approvals and Test Reports

Food (FDA)

Forms of delivery

Ready-to-install, compression-molded packing rings made to measure; as complete packing sets; sold by the meter in boxes;

1 kg 4 - 7 mm vkt.
2 kg 8 - 11 mm vkt.
3,5 kg 12 - 14 mm vkt.
5 kg 15 - 19 mm vkt.
10 kg ab 20 mm vkt.


Data Sheet
EN | Last Changed 2023-09-29

General information: All information given in this Technical Information sheet represents our current level of knowledge and serves as information on our products and their respective scopes. It is not meant to ensure any particular properties of any product or the suitability of any product for any specific application, neither does it create any liability on our part.

Last Changed 2023-09-29 20:02:13

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