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CONTEF(TM)   Back to Tubing & Hose Page

Made in USA

    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-approved ingredients
  • Available to Military Specification MIL-T-81914/1^ (without wire only)
    •
APPLICATIONS

Chemical Processing • Deionized Water • Laboratory • Medical • Robotics • Paint Spray Systems • Pharmaceutical Processing & Packaging • Ultra-Pure Fluid Systems

Physical Properties**
  WITHOUT WITH
  WIRE WIRE
Hardness, Shore D 55-65 55-65
Tensile Strength, psi 2000 2000
Elongation at Break, % 300 200
Brittle Temperature <-275°F <-110°F
Max. Operating Temp.^^ 500°F 350°F
Max. Cont. Svc. Temp. at
zero pressure^^		 450°F 350°F

**Values listed are typical and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for the application.
^^ Temperatures are for standard extruded (non-convoluted) tubing.

Recommended Fittings & Clamps 		  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 also available -- contact us for details.

Overbraiding for higher pressure capabilities is available.

PTFE's color will vary naturally from lot to lot, however, 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: 27 in./Hg at 72°F.

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

^Military Spec. CONTEF is available without wire only and is not stocked -- call for details.

CONTEF With Wire:

Vacuum Service: 27 in./Hg at 72°F.

For higher vacuum applications, CONTEF can be produced with wire on the I.D. - call for details.

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CONTEF (Unreinforced and Wire reinforced)

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"E" dimension to be specified at time of order.
All lengths will be supplied with "B" dimension cuffs.
Product Number Construction  (A)ID  (B)Cuff Lengths(Nom.)  (C)Wall(Nom.)  (D)Convolution OD(Nom.)  (F)Convolution ID(Nom.)  Bend Radius  (E)Maximum Available Lengths(FT.)(including cuffs)  Working PSI(at 70°F)  Burst PSI(at 70°F) 
  3500070 Unreinforced  .250 (1/4)  .750 (3/4)  0.015  0.32  0.185  .500 (1/2)  125  62  248 
  3500147 Unreinforced  .313 (5/16)  1.000  0.02  0.414  0.277  .750 (3/4)  125  56  220 
  3500224 Unreinforced  .375 (3/8)  1.000  0.02  0.45  0.308  .875 (7/8)  125  52  200 
  3500301 Unreinforced  .500 (1/2)  1.000  0.02  0.59  0.431  1.250 (1-1/4)  100  40  160 
  3500378 Unreinforced  .625 (5/8)  1.250 (1-1/4)  0.025  0.66  0.492  1.500 (1-1/2)  75  35  140 
  3500455 Unreinforced  .750 (3/4)  1.500 (1-1/2)  0.025  0.78  0.617  1.750 (1-3/4)  75  30  120 
  3500532 Unreinforced  1.000  2.000  0.03  1.1  0.862  2.250 (2-1/4)  50  27  100 
  3500609 Unreinforced  1.250 (1-1/4)  2.500 (2-1/2)  0.035  1.6  1.17  2.750 (2-3/4)  40  24  80 
  3500686 Unreinforced  1.500 (1-1/2)  2.500 (2-1/2)  0.04  1.91  1.45  3.000  40  20  65 
  3500763 Unreinforced  2.000  2.500 (2-1/2)  0.043  2.45  1.97  4.250 (4-1/4)  40  17  55 
  3500917 Unreinforced  3.000  3.000  0.062  3.750 (3-3/4)  3  7.000  30  15  50 
  3500994 Unreinforced  4.000  3.000  0.062  4.750 (4-3/4)  4  9.000  20  12  40 
  3520076 Wire reinforced  .220  .750 (3/4)  0.015  0.32  0.14  .500 (1/2)  12  100  400 
  3520153 Wire reinforced  .313 (5/16)  1.000  0.02  0.414  0.19  .750 (3/4)  12  87  348 
  3520230 Wire reinforced  .375 (3/8)  1.000  0.02  0.45  0.25  .875 (7/8)  12  75  300 
  3520307 Wire reinforced  .500 (1/2)  1.000  0.02  0.59  0.36  1.250 (1-1/4)  20  68  272 
  3520384 Wire reinforced  .625 (5/8)  1.250 (1-1/4)  0.025  0.66  0.49  1.500 (1-1/2)  20  62  248 
  3520461 Wire reinforced  .750 (3/4)  1.500 (1-1/2)  0.025  0.78  0.615  1.750 (1-3/4)  20  55  220 
  3520538 Wire reinforced  1.000  2.000  0.03  1.1  0.81  2.230  20  45  180 

"E" dimension to be specified at time of order. All lengths will be supplied with 'B' dimension cuffs.
 ID is the critical dimension for fittings application.
Download a printable PDF version of our Fluoropolymer tubing literature.

Fluoropolymer.pdf (612kb)

Requires Adobe® Reader® to view.

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