description ptfe

 Fluoropolymeres

   
Flouropolymer-products
 vessels, pipes, hoses, armatures etc., which are manufactured in PTFE-lined or in solid PTFE have the following advantages:
   
Flouropolymer-products 

are resistant against:

  • Nitric Acid
  • Chemical Processing
  • Aniline
  • MECI
  • Pharmaceutical
  • Epichlorohydrin
  • Oleum
  • Nitrobenzene
  • Ethylene Oxide
   
Flouropolymer-products Guarantee full corrosion protection against all above chemical substances
- even under extreme thermal conditions from -200°C - +260°C
   
   
   
  

Density                                        g/cm³

2,1 -2,3

 

Surface resistivity                          Ω

>1017

Continuous use temperature        °C

-190 – +260

 

Dissipation factor 50/106               Hz-4

1-2

Short time temperature                 °C

+280

 

Dielectric strength                    KV/mm

20 - 40

Stress at yield                              MPa

20 – 30

 

Water absorption                          %

< 0,1

Elongation at break                       %

200 - 300

 

Friction constant

 

Hardness (Shore D)

55 – 70

 

PTFE-PTFE (dry)

0,09 - 0,19

Linear thermal expansion        10-6/K

130-200

 

PTFE-PTFE (greased)

0,04 - 0,07

Thermal conductance 20°C 
W/K m

0,21

 

PTFE-Stahl (dry)

0,07 - 0,11

Dielectric constant
50/106 Hz

2,0 - 2,1

 

PTFE-Stahl (greased)

0,02 - 0,06

Volume resistivity                          Ω m

>1016

 

Weather-worn after 3 Years

n. a.