PTFE Hoses (Paste Extrusion)

Polytetrafluoroethylene (PTFE) is the oldest, best known and most widely used fluoroplastic. PTFE was first marketed by DuPont under the trade name Teflon®, which is familiar to most people as the frying-pan coating of the same name. PTFE hoses made of fluoroplastics are constantly finding new applications in industry. The main reasons here are not only their wide temperature range, but also the combination of the many material properties that characterize these plastics.

Advantages of PTFE hoses at a glance:

  • Excellent sliding and non-stick properties
  • High and wide temperature range (from -200 to +260 °C)
  • Very good (universal) chemical resistance
  • No water absorption
  • Non-flammable
  • Good electrical and dielectric properties

The fluoroplastic PTFE has outstanding properties that are ideal for applications where high compressive strength, chemical resistance, food safety and the like are required. PTFE is therefore particularly suitable for applications where precision and safety, as well as highly versatile solutions are necessary. The main properties can be found in the technical tables.

Technical Specifications Standard Sizes American Wire Gauge


Reduction factors at working temperatures above 20 °C

The diagram helps to determine the working pressure (approx. 0.25 x short-term burst pressure) for PTFE hoses. At temperatures above 20 °C the pressures shown in the diagram should be multiplied by the corresponding reduction factors.

 





Temperature °C Reduction Factor F
50 0,87
75 0,77
100 0,68
150 0,53
200

0,39

250

0,28

 

Minimum Bending Radius

The question frequently arises of the smallest possible bending radius when installing PTFE hoses. This can be determined using the following rule of thumb:


Other PTFE hoses in our production program

In addition, our diverse production program includes further products for many different applications. These include modified PTFE hoses, thermo fluoroplastics available as granules, heat shrinkable tubes, as well as special and individual hoses. If you have any questions, please do not hesitate to contact us.

 

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