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FEP Tubing

FEP Tubing

FEP fluoropolymer tubing for strong acid, alkali and solvent lines. 14 models from 2.5 x 4 mm to 12 x 16 mm and 1/8″ to 1/2″, in 100 m rolls. Send your medium for review.
Review specifications ↓
PRODUCT OVERVIEW

Product overview

FEP tubing is one of the fluoropolymer tubing families listed by AIR PASSAGE. Review the supplied model dimensions and compare the required fluid, temperature and connection conditions with the information for PFA.

Key features

  • Virgin FEP

    Extruded from selected virgin material; no recycled or reprocessed material is added (data sheet).

  • Transparent for visual monitoring

    High-transparency tubing lets you watch media flow in laboratory and chemical-equipment lines.

  • Colors

    High-transparency clear, transparent blue and transparent red.

  • Temperature range

    -196°C to +200°C

  • Working pressure

    6 bar (87 psi) – 20 bar (280 psi) at 23°C, depending on the model (data sheet). Burst pressure is not working pressure.

  • Sizes

    10 listed models, outside diameter 4–16 mm. Inch sizes are listed where the data sheet gives them.

Tubing extrusion and coiling line in the Hefei factory

How the tubing is made and checked

Tubing is produced on extrusion and coiling lines and checked with dimensional, pressure-hold, burst-pressure and tensile equipment listed in the company inventory. Product requirements are reviewed against the drawing and order.

  1. IncomingCheck supplier documents, material identity, specification, quantity and packaging.
  2. In processDrawing and route-sheet revision checks, measurement-equipment status and inspection records.
  3. Finished tubingIdentity, surface and tube-end condition, dimensions, marking, cleanliness and packaging.

Supply terms

  • MOQ

    Standard specifications: 500 m per specification. Custom specifications: from 3,000 m per specification.

  • Lead time

    Standard product: 8–15 working days. Custom product: 10–20 working days. Lead time starts after the technical specification is confirmed and the agreed payment is received.

  • Samples

    Standard specifications: 1–3 m. Sample fee and shipping are paid by the customer; the sample fee can be credited against the first bulk order within 6 months, shipping is not credited.

Final MOQ and lead time are confirmed by material, specification, color, packaging and order quantity.

Request samples →

Selection notes and conditions

Selection at a glance

  • Product family: FEP Tubing.
  • Media / application scope in the supplied data sheet: Strong acids, strong alkalis, salt solutions, organic solvents and oxidizing agents; validate the specific medium and conditions.
  • Dimensions: select ID, OD and the stated model values from the table below.
  • Inquiry details: include model, dimensions, quantity, fittings and the intended operating conditions.

Define the fluid and exposure conditions

Provide the exact chemical, concentration, temperature and exposure duration. The broad medium description in the data sheet is not a universal chemical compatibility or food-contact approval.

Pressure and temperature conditions

Pressure and temperature ratings are listed separately; send your operating point for a combined-condition check. Working pressure is the design rating; burst pressure is a test value. Confirm the model-specific limits, test conditions and complete fitting assembly before use.

Related selection information

PFA tubing →.

What is FEP tubing?

FEP is the material designation used for this fluoropolymer tubing family. A material name is a starting point for selection, not a complete specification. Compare the exact model, dimensions and available supporting documentation.

Comparing FEP tubing suppliers

A request to an FEP tubing manufacturer should identify ID, OD, length, quantity and the actual medium. Ask for confirmation of chemical compatibility and temperature and pressure conditions for the selected model.

Request model-specific technical documents →

TECHNICAL DATA

Specifications & available sizes

Specifications: TDS-FEP-2026-V6. Model designations and table values below follow the 2026 technical data sheet for this product.
Dimensions and pressure tables are specified at 23°C. Pressure values are in bar (psi) as stated in the data sheet. Working pressure is the design rating and burst pressure is a test value; pressure and temperature ratings are listed separately, so send your operating point for a combined-condition check.
Tolerance, metric/inch size system and, where applicable, layer construction are identified in each row. Physical properties are reference values from the data sheet; test methods and application-specific compliance are reviewed against your requirements.

Scroll horizontally to view all columns. Use arrow keys when the table is focused.

Technical specifications
Media / application scope (supplied data sheet)Strong acids, strong alkalis, salt solutions, organic solvents and oxidizing agents; validate the specific medium and conditions.
DensityApprox. 2.12-2.17 g/cm³
Hardness55 ± 5 Shore D
Tensile strength>20 MPa
Elongation at break≥250%
Melting temperatureApprox. 260°C
24-hour water absorptionApprox. 0.01%
Finished-product service temperature range-196°C to +200°C
Standard colors / packagingStandard colors: high-transparency clear, transparent blue and transparent red. Packaging: stretch-film wrapping.

Scroll horizontally to view all columns. Use arrow keys when the table is focused.

Size specifications at 23°C — pressure: bar (psi), source values
Model / nominal inch sizeID (mm)OD (mm)Standard roll length (m)Working pressure at 23°CBurst pressure at 23°CBend radius (mm)Size system / tolerance / construction
YN-FEP 04252.54.010016 bar (224 psi)48 bar (672 psi)25Metric | Tolerance: ±0.10 mm
YN-FEP 06404.06.010017 bar (238 psi)52 bar (728 psi)40Metric | Tolerance: ±0.10 mm
YN-FEP 08505.08.010020 bar (280 psi)60 bar (840 psi)60Metric | Tolerance: ±0.10 mm
YN-FEP 08555.58.010020 bar (280 psi)60 bar (840 psi)65Metric | Tolerance: ±0.10 mm
YN-FEP 08606.08.010013 bar (182 psi)40 bar (580 psi)70Metric | Tolerance: ±0.10 mm
YN-FEP10656.510.010019 bar (270 psi)58 bar (812 psi)80Metric | Tolerance: ±0.10 mm
YN-FEP 10808.010.010014 bar (196 psi)42 bar (588 psi)110Metric | Tolerance: ±0.10 mm
YN-FEP 12808.012.010018 bar (261 psi)56 bar (784 psi)100Metric | Tolerance: ±0.10 mm
YN-FEP 141010.014.010012 bar (168 psi)36 bar (504 psi)120Metric | Tolerance: ±0.10 mm
YN-FEP 161212.016.010010 bar (145 psi)30 bar (420 psi)160Metric | Tolerance: ±0.10 mm
1/8″1.583.17510016 bar (232 psi)64 bar (928 psi)13Fractional / inch | Tolerance: ±0.10 mm
1/4″4.356.35010010 bar (145 psi)40 bar (580 psi)50Fractional / inch | Tolerance: ±0.10 mm
3/8″6.359.52510010 bar (145 psi)40 bar (580 psi)26Fractional / inch | Tolerance: ±0.10 mm
1/2″9.6012.701006 bar (87 psi)24 bar (348 psi)130Fractional / inch | Tolerance: ±0.10 mm
QUESTIONS

Product FAQ

How is FEP tubing chemical compatibility reviewed?

Provide the exact chemical, concentration, temperature, exposure duration, pressure, cleaning conditions and fitting design. Review those conditions against documentation for the selected FEP tubing model. A material-family name or a general medium listing does not approve every chemical service.

Which source governs the FEP sizes shown here?

The current model table follows TDS-FEP-2026-V6. Only dimensions in this supplied data sheet are listed.

Does the FEP family name confirm fitting compatibility?

No. Confirm the dimensions, tolerance, fitting design and assembly requirements with the selected tubing and connection specification.

What is FEP tubing made of, and what does FEP stand for?

FEP stands for fluorinated ethylene propylene, a melt-processable fluoropolymer. The supplied data sheet lists a melting temperature of approx. 260°C and a finished-product service temperature range of -196°C to +200°C. Send your specific medium and operating conditions for review before ordering.

What are the specifications of FEP tubing?

The 14 listed models cover metric sizes from 2.5 x 4 mm to 12 x 16 mm and inch sizes from 1/8" to 1/2", supplied in 100 m rolls with a tolerance of ±0.10 mm. Working pressure at 23°C runs from 6 to 20 bar (87 to 280 psi) depending on the model, and 24-hour water absorption is approx. 0.01%. Standard colors are high-transparency clear, transparent blue and transparent red. Check the exact model in the specifications table.

Is FEP tubing the same as Teflon or PTFE tubing?

Teflon is a brand name used for several fluoropolymers, including FEP, PFA and PTFE. FEP and PTFE are different materials, so check the material designation and the data sheet rather than the brand name. This page covers the FEP models listed in the specifications table.

Let’s Discuss Your Tubing Requirements.

Looking for a standard size or a custom specification? Send us the details, and we will review the available options with you.
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