PTFE Convoluted Tubing

PTFE Convoluted Tubing

 

(PolyTetraFluoroEthylene)

PTFE convoluted tubing is produced using a modified grade of standard PTFE offering the advantage of excellent flex-life performance compared to most other fluoropolymers together with greatly improved stress crack resistance.

Containing fewer pinhole voids than standard material, PTFE convoluted tubing benefits from much lower permeation making it an excellent choice for the transport of fine chemicals and very ‘searching’ gases such as chlorine.

Key Features of
Convoluted Tubing:

  • Most flexible tubing design
  • Self draining due to its helical form
  • Broadest chemical resistance
  • Serviceable up to 260°C (500°F)
  • Non-wetting
  • Very low diffusion through wall
  • UL94 V-O flammability rating, LOI 95%
  • Smooth surfaces
  • Numerous connection options
  • FDA & USP Class VI compliant

Availability of PTFE Convoluted Tubing:

  • Available in coils or on spools
  • Cut-to-length
  • Standard & conductive (fully carbon black or single helical stripe)
  • Thermoformed ends: flanged, flared, cuffed
  • Ready assembled with connectors
  • Outer helical wire for improved pressure performance and crush resistance



PTFE Convoluted Tubing - Standard Nominal Imperial Sizes:

Nom BoreID (mm)Wall (mm)OD (mm)Pitch (mm)MBR (mm)Max Coil Length
1/4 6.00 +/-0.25 0.65 +/-0.10 10.00 +/-0.10 5.0 10 150
5/16 8.00 +/-0.25 0.65 +/-0.10 12.00 +/-0.25 5.0 15 125
3/8 10.00 +/-0.35 0.65 +/-0.10 14.50 +/-0.35 5.0 20 120
1/2 13.00 +/-0.40 0.90 +/-0.10 18.00 +/-0.40 6.0 25 80
5/8 16.00 +/-0.40 0.90 +/-0.10 21.00 +/-0.40 6.0 30 55
3/4 20.00 +/-0.40 1.00 +/-0.10 28.00 +/-0.40 8.0 50 140
1 25.00 +/-0.50 1.10 +/-0.10 34.00 +/-0.50 8.0 60 100
1 1/4 32.00 +/-0.50 1.15 +/-0.10 42.00 +/-0.50 10.0 80 70
1 1/2 37.00 +/-0.50 1.45 +/-0.15 47.00 +/-0.50 10.0 100 100
1 3/4 45.00 +/-0.50 1.45 +/-0.15 57.00 +/-0.75 12.0 120 85
2 50.00 +/-1.00 1.50 +/-0.15 61.00 +/-1.00 12.5 125 80
2 1/4 57.00 +/-1.00 1.50 +/-0.15 73.00 +/-1.00 16.0 150 65
2 1/2 63.00 +/-1.50 1.50 +/-0.15 82.00 +/-1.00 18.0 175 55
3 74.00 +/-1.50 1.50 +/-0.15 92.00 +/-1.00 20.0 200 45
4 100.00 +/-2.00 2.00 +/-0.20 125.00 +/-2.00 24.0 225 25
5 125.00 +/-2.00 2.50 +/-0.25 152.00 +/-2.00 30.0 235 20
6 150.00 +/-2.50 2.50 +/-0.25 180.00 +/-2.50 30.0 250 15

MBR: minimum bend radius

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Polyflon Technology Limited16 Raleigh HallEccleshallStaffordST21 6JLUnited Kingdom