Contef® Fluoropolymer Tubing
Contef’s helical construction aids in self cleaning when flushed with standard cleaning fluids. The cuffs (straight ends) will 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. 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 high vacuum applications, Contef can be produced with wire on the I.D. — call for details.
- PTFE tubing offers excellent chemical and electrical properties
- Translucent and 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
- Adhesives & Hot Glue Delivery
- Chemical Transfer
- Corrosives
- Cryogenics
- Deionized Water Transfer
- Food & Beverage Processing
- Industrial Laboratory Uses
- Lighting Covers
- Paint Spray Systems
- Pure Water & Fluid Systems
- Sight Glass (FEP)
- Solvent Transfer
- Water Sampling
- Wire Insulation
| Value | |
|---|---|
| Hardness, Shore D | 50-65 |
| Tensile Strength, psi | 3500 |
| Elongation at Break, % | 200-400 |
| Brittle Temperature, °F† | -450 |
| Max. Operating Temperature, °F† | 500 |
NOTE: 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.
†Temperatures are for standard extruded
(non-convoluted) tubing.
Cut Pieces – When tubing comes in, for example, 100 foot coils, and you need it in 10’ sections, tubing can be cut. Request a quote.
Size – Tubing is stocked in common I.D. and O.D. sizes, but this product can be custom extruded in other sizes. Let’s talk about what you need. Minimum quantities apply.
Color – Have your tubing colored to match equipment, company colors, or identify line (hot or cold, indoor or outdoor, chemicals, etc..).
Opaque and transparent colors may be accommodated. Minimum quantities apply.
All custom products are subject to minimum order quantities and lead times. For other custom options, please contact us.
Options & Sizes
Without Wire
| Part Number | A ID (in) |
B Nom. (in) |
C Nom. (in) |
D Ref. (in) |
F Nom. (in) |
Bend Radius (in) |
Max Length (ft) |
Working PSI at 72°F |
Burst PSI at 72°F |
|---|---|---|---|---|---|---|---|---|---|
| 3500070 | 1/4 | 3/4 | 0.015 | 0.320 | 0.181 | 1/2 | 125 | 45 | 180 |
| 3500147 | 5/16 | 1 | 0.020 | 0.414 | 0.273 | 3/4 | 125 | 48 | 192 |
| 3500224 | 3/8 | 1 | 0.020 | 0.450 | 0.303 | 1-3/4 | 125 | 40 | 160 |
| 3500301 | 1/2 | 1 | 0.020 | 0.590 | 0.425 | 1-1/4 | 100 | 30 | 120 |
| 3500378 | 5/8 | 1-1/4 | 0.023 | 0.660 | 0.485 | 1-1/2 | 75 | 30 | 120 |
| 3500455 | 3/4 | 1-1/2 | 0.025 | 0.780 | 0.608 | 1-3/4 | 75 | 25 | 100 |
| 3500532 | 1 | 2 | 0.030 | 1.100 | 0.849 | 2.230 | 50 | 22 | 90 |
| 3500609 | 1-1/4 | 2-1/2 | 0.035 | 1.560 | 1.150 | 2-3/4 | 40 | 21 | 85 |
| 3500686 | 1-1/2 | 2-1/2 | 0.040 | 1.910 | 1.410 | 3 | 40 | 20 | 80 |
| 3500763 | 2 | 2-1/2 | 0.043 | 2.450 | 1.955 | 4-1/4 | 40 | 16 | 65 |
‘E’ dimension to be specified at time of order. All lengths will be supplied with ‘B’ dimension cuffs. The minimum overall length for Contef with a cuff at each end is 6”; shorter lengths are possible when only one cuff is needed.
All pressures are calculated and not based on actual testing.
B is the critical dimension for fittings application.
Options & Sizes
With Wire
| Part Number | A ID (in) |
B Nom. (in) |
C Nom. (in) |
D Ref. (in) |
F Nom. (in) |
Bend Radius (in) |
Max Length (ft) |
Working PSI at 72°F |
Burst PSI at 72°F |
|---|---|---|---|---|---|---|---|---|---|
| 3520076 | 1/4 | 3/4 | 0.015 | 0.320 | 0.181 | 1/2 | 12 | 58 | 234 |
| 3520153 | 5/16 | 1 | 0.020 | 0.414 | 0.273 | 3/4 | 12 | 62 | 250 |
| 3520230 | 3/8 | 1 | 0.020 | 0.450 | 0.303 | 1-3/4 | 12 | 52 | 208 |
| 3520307 | 1/2 | 1 | 0.020 | 0.590 | 0.425 | 1-1/4 | 20 | 39 | 156 |
| 3520461 | 3/4 | 1-1/2 | 0.023 | 0.780 | 0.608 | 1-3/4 | 20 | 32 | 130 |
| 3520538 | 1 | 2 | 0.030 | 1.100 | 0.849 | 2-1/4 | 20 | 29 | 117 |
‘E’ dimension to be specified at time of order. All lengths will be supplied with ‘B’ dimension cuffs. The minimum overall length for Contef with a cuff at each end is 6”; shorter lengths are possible when only one cuff is needed.
All pressures are calculated and not based on actual testing.
B is the critical dimension for fittings application.