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

  • 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

1737

Material

1737

Profile

PG/PR

Description

Operating Data

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

Fields of Application

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

Applications

abrasive and sticky media
limited suitability
Water, Process water, Lake water
suitable
Hot water, boiler dining water
suitable
Vapors, acid gases, nitrogen
suitable
Oxygen
not suitable
Mineral oils, animal fats
suitable
Heat carrier oils, synthetic oils
suitable
Alcalia diluted, salt solutions
suitable
Alcalia concentrated
suitable
Inorganic acids diluted, salt solutions
suitable
Inorganic acids concentrated
suitable
Solvents, other organic compounds
suitable
Lacques, colors (silicone -free)
not suitable

Approvals & Test Reports

FDA (Food)

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.