PTFE Tubing (PolyTetraFluoroEthylene)

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1-828-584-2600

If your temperature requirements range up to 500º F (260º C), PTFE Tubing (PolyTetraFluoroEthylene) is the recommended choice. It resists “melt-off” by soldering irons when making terminations. Because of its excellent dielectric properties, it is widely used in electronics and electrical service. Another key advantage of PTFE Tubing is its non-stick properities that allow the transport of materials with minimal fluid resistance. Please do be aware, however, that PTFE reacts with fluorine, molten sodium hydroxide and molten alkali metals.

We have a full line of extruded PTFE Tubing used for protecting wiring or transporting fluids in critical applications. PTFE Tubing comes in various configurations as well as custom designs. PTFE Tubing outperforms glass and graphite by its inherent superior chemical resistivity and low coefficient of friction, making it an ideal material for fluid transfers. PTFE Tubing can be used with virtually all industrial solvents, chemicals, and corrosive materials, and can be used in processes at elevated temperatures. It can be steam sterilized without effecting its physical properties, such as surface hardness, elongation, flex life or deformation under load. PTFE Tubing is normally translucent white in color, however, the degree of whiteness varies from lot to lot, and with dimensional wall thickness. Colored PTFE tubing is also available and is generally used to simplify tube routing during system installations.

PTFE Tubing Offers:

  • Non-stick properties
  • Temperature resistance up to 260º C (500º F)
  • Aging resistance
  • Can be steam or chemically sterilized in-line
  • Superior chemical resistivity and low coefficient of friction

PTFE Tubing Applications:
Aerospace &Transportation Technology, Electronics, Components & Insulators, Chemical & Pharmaceutical Manufacturing, Food Processing, Environmental Sciences, Air Sampling, Fluid Transfer Devices and Water Processing Systems

PTFE Fractional Sizes

O.D. (in) I.D. (in) Wall (in) Nominal O.D. O.D. Tolerance
(in)
Wall Tolerance
(in)
Working Pressure*
PSIG(bar)
Burst Pressure+
PSIG(bar)
Minimum Bend
Radius (in)
1/8 1/16 0.031 0.125 +/- 0.004 +/- 0.003 300 (21) 1500 (103) 1/2
3/16 1/8 0.031 0.188 +/- 0.005 +/- 0.003 192 (13) 961(66) 1/2
1/4 3/16 0.031 0.25 +/- 0.005 +/- 0.003 140 (9.7) 700 (48) 1
1/4 5/32 0.047 0.25 +/- 0.005 +/- 0.003 219 (15) 1095 (75) 3/4
1/4 1/8 0.062 0.25 +/- 0.005 +/- 0.003 300 (21) 1500 (103) 1/2
5/16 1/4 0.031 0.313 +/- 0.005 +/- 0.003 110 (7.6) 549 (38) 3/4
5/16 3/16 0.062 0.313 +/- 0.005 +/- 0.003 235 (16) 1176 (81) 1/2
3/8 5/16 0.031 0.375 +/- 0.005 +/- 0.003 90 (6.2) 450 (31) 2-1/2
3/8 1/4 0.062 0.375 +/- 0.005 +/- 0.003 192 (13) 962 (66) 1
1/2 7/16 0.031 0.5 +/- 0.006 +/- 0.003 66 (4.6) 332 (23) 4
1/2 3/8 0.062 0.5 +/- 0.006 +/- 0.003 140 (9.7) 700 (48) 2

PTFE METRIC SIZES

O.D.
(mm)
I.D.
(mm)
O.D./I.D.
Tolerance (mm)
O.D.
(in)
I.D.
(in)
O.D./I.D.
Tolerance
(in)
Working
Pressure*
PSIG(bar)
Burst
Pressure+
PSIG(bar)
Minimum
Bend
Radius (in)
4 2 +/- 0.11 0.157 0.078 +/- 0.004 300 (21) 1500 (103) 1/2
6 4 +/- 0.13 0.236 0.157 +/- 0.005 192 (13) 961(66) 1/2
8 6 +/- 0.13 0.315 0.236 +/- 0.005 140 (9.7) 700 (48) 1-3/4
10 8 +/- 0.13 0.393 0.315 +/- 0.005 110 (7.6) 549 (38) 2-1/2
12 10 +/- 0.15 0.472 0.393 +/- 0.006 90 (6.2) 451 (31) 3-1/2

*This tubing has a safety factor of 5 to 1 (ratio of burst pressure to working pressure). This data is to be used as a guildeline only. You should perform actual tests according to your specific application.
+The following equation is for calculating burst pressure. The result from this equation is to be used as a guideline only. The calculation is at ambient room temperature. It does not factor steam pressure, altitude, etc.

B=T(O.D.2 - I.D.2)
     O.D.2 + I.D.2

B=Burst Pressure
T=Tensile Strength Values: FEP-3000 psi PFA - 4000 psi PTFE - 2500 psi PVDF - 5000 psi ETFE=6500 psi
1 bar = 14.504 psi