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Top 20 Tubing and Hose Buying Tips, Part One

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Fluoropolymer Tubing

Contef™ Convoluted PTFE
Fluoropolymer Tubing

Contef™ Convoluted PTFE Fluoropolymer 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 compliant materials


Chemical ProcessingDeionized Water Transfer Industrial Laboratory Uses Paint Spray Systems Processing & Packaging RoboticsUltra-Pure Fluid Systems

Physical Properties**

Hardness, Shore D

Tensile Strength at Break, psi

Elongation at Break, %

Embrittlement Temperature, °F

Min. Operating Temp. for Tubing^^, °F

Max. Operating Temp. for Tubing^^, °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.


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 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.

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.


Any information presented on this webpage or in related promotional materials is being presented solely for informational purposes and does not create any representation from NewAge to any buyer regarding a product’s fitness for a particular use or that a particular use of the product by a buyer (including incorporation into a medical device) would comply with all applicable laws and regulations. NewAge’s standard terms and conditions (found here) will be the sole and exclusive legal agreement between the parties with regards to any purchased products.


Part NumberConstruction(A)
ID (in.)
(B) Nom. Cuff
Lengths (in.)
Wall (in.)
(D) Nom.
Convolution OD (in.)
(E) Max. Avail.
Lengths - including
cuffs (ft.)
(F) Nom.
Convolution ID (in.)
Working PSI
(at 72°F)
Burst PSI
(at 72°F)
Radius (in.)
3500070Unreinforced.250 (1/4).750 (3/4)0.0150.321250.18145180.500 (1/2)
3500147Unreinforced.313 (5/16)1.0000.020.4141250.27348192.750 (3/4)
3500224Unreinforced.375 (3/8)1.0000.020.451250.303401601.750 (1-3/4)
3500301Unreinforced.500 (1/2)1.0000.020.591000.425301201.250 (1-1/4)
3500378Unreinforced.625 (5/8)1.250 (1-1/4)0.0230.66750.485301201.500 (1-1/2)
3500455Unreinforced.750 (3/4)1.500 (1-1/2)0.0250.78750.608251001.750 (1-3/4)
3500609Unreinforced1.250 (1-1/4)2.500 (2-1/2)0.0351.56401.1521852.750 (2-3/4)
3500686Unreinforced1.500 (1-1/2)2.500 (2-1/2)0.041.91401.4120803.000
3500763Unreinforced2.0002.500 (2-1/2)0.0432.45401.95516654.250 (4-1/4)
3520076Wire reinforced .250 (1/4).750 (3/4)0.0150.32120.18158234.500 (1/2)
3520153Wire reinforced .313 (5/16)1.0000.020.414120.27362250.750 (3/4)
3520230Wire reinforced .375 (3/8)1.0000.020.45120.303522081.750 (1-3/4)
3520307Wire reinforced .500 (1/2)1.0000.020.59200.425391561.250 (1-1/4)
3520461Wire reinforced .750 (3/4)1.500 (1-1/2)0.0230.78200.608321301.750 (1-3/4)
3520538Wire reinforced 1.0002.0000.031.1200.849291172.250 (2-1/4)

“E” dimension to be specified at time of order. All lengths will be supplied with ‘B’ dimension cuffs.
All pressures are calculated and not based on actual testing.
ID is the critical dimension for fittings application.

Custom Capabilities

Cut Pieces

All custom products are subject to minimum order quantities and lead times. For other custom options, please contact us.

Contef Tubing

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