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Item # 350 0917, Contef® Convoluted PTFE Tubing



  • Translucent PTFE tubing offers excellent chemical and electrical properties
  • Available from stock with or without a stainless steel wire encircling the O.D. Wire coil provides increased pressure capability and aids in electrical grounding
  • Easily flexed - spiral construction allows far greater flexibility than straight wall tubing
  • Spiral construction also allows for easier cleaning
  • Made from FDA-sanctioned ingredients
  • Available to AMS-T-81914/1 (without wire only)
    (CONTEF with AMS (Aerospace Material Specifications) is available without wire only and is not stocked)
Notes

CONTEF's helical construction aids in self cleaning when flushed with standard cleaning fluids.

The cuffs (straight ends) are made to accept standard barbed fittings. Hose assemblies made to your specifications are available.

PTFE's color will vary naturally from lot to lot, but the quality and physical properties do not change.

FEP CONTEF for longer continuous lengths - up to 500 ft. - is available through custom order.

CONTEF Without Wire:

Vacuum Service: 29.9 in./Hg at 70ºF.

Convolutions are molded into the tubing and will not cold flow into a straight wall under normal conditions.

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Specifications  · Physical Properties

Specifications

Type

Without Wire

I.D. (Dim. A)

3 in

Dim. B

3 in

Dim. C (Nom.)

0.062 in

Dim. D (Ref.)

3-3/4 in

Dim. F (Nom.)

2.940 in

Bend Radius

7 in

Working Pressure at 70ºF

15 psi

Burst Pressure at 70ºF

50 psi

Max. Length

30 ft

Notes

Limited stock availability; lead times and minimums may apply.


Physical Properties

Hardness, Shore D

55-65

Min. Tensile Strength

2000 psi

Elongation at Break

300 %

Brittle Temperature1

<-275 ºF

Max. Operating Temp.2

500 ºF

Max. Cont. Svc. Temp., Zero Pressure3

450 ºF

Notes

Values listed are typical for the material used in manufacture, except where noted, and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for your application.
1 Temperatures are for standard extruded (non-coiled) tubing.
2 Temperatures are for standard extruded (non-coiled) tubing.
3 Temperatures are for standard extruded (non-coiled) tubing.