Tubing

Tubing Overview & Functions

PEEK Tubing

Our PEEK (polyetheretherketone) polymer tubing is biocompatible, chemically inert to most solvents, and can be used to replace stainless steel tubing in most liquid analytical systems. Unlike stainless steel tubing, PEEK tubing is flexible and can be easily cut to desired lengths.

• 1/16” or 1/8” outside diameter available
• Biocompatible, inert, and easily cut Great for high pressure applications
• Maximum continuous use temperature: 100 ºC

Capillary PEEK Tubing

• 360 µm or 1/32” outside diameter available
• IDs as small as 25 µm (0.001”)

The capillary tubing can be coupled to many of the products in the Connectors chapter and to some of the valves in the Valves chapter

Fused Silica Tubing

• Five inner diameters with most common capillary outside diameter, 360 µm
• Cut in convenient lengths, up to 2 m

These products are manufactured from synthetic fused silica with a polyimide coating.

What Size PEEK Tubing Should I Use?

It is usually safe to use 1/16” OD x 0.010” ID tubing throughout an analytical HPLC system. With a 0.010” ID, the pressure drop across most tubing lengths is negligible, and the ID is small enough to minimize band broadening. High pressure semi-prep LC systems will most likely use 1/8” OD tubing. Use our 1/32” OD tubing for the high pressure flow path of some microbore HPLC systems. Choose 360 µm OD tubing for most capillary systems. PEEK tubing is also available by the inch. Contact your local Distributor or IDEX Health & Science directly for pricing information.

Specifications & Details

Ordering Informations

Stainless Steel Tubing

• Precut 316 stainless steel
• Available ODs include 1/32”, 1/16”, and 1/8”
• Color-coded banding for easy identification of the inner diameter
• Our 1/32” OD tubing is designed for enhanced flexibility in high pressure applications
• Standard 1/16” and 1/8” OD stainless steel tubing is suited for most analytical applications

The Beauty of Precut Tubing

Specifications & Details

• Maximum Recommended Operating Temperature: 750 °F (399 °C).
• Rockwell Hardness (B): Maximum of 95.
• Meets ASTM A269 and A213

Ordering Informations

PEEKsil™ Tubing

• PEEK covered fused silica
• 1/32” and 1/16” outside diameters with a wide variety of inside diameters
• Precut to numerous standard lengths 

Like traditional fused silica tubing, PEEKsil has excellent chemical compatibility and extremely low adsorption characteristics, especially when compared with stainless steel.

Please Note: Do not cut this tubing. It should be used at its precut lengths because of permanent damage caused by conventional cutters.

Specifications & Details

Ordering Informations

 **Please contact technical sales or This email address is being protected from spambots. You need JavaScript enabled to view it. for order or additional information.

Tubing Overview & Functions

PFA Tubing

• 1/16” and 1/8” ODs available
• Excellent solvent resistance and low gas permeability
• Constructed with genuine Teflon™ PFA resin

PFA (perfluoroalkoxyalkane) tubing offers excellent solvent resistance (virtually identical to FEP and PTFE) while adding several advantages. These include smoother surface texture, higher continuous service temperature and superior polymer purity. The recommended maximum operating temperature for our PFA tubing is 80 ºC.

High Purity PFA Tubing

• 360 µm, 1/16”, 1/8”, 3/16”, and 1/4” outside diameters available
• PFA HP and PFA HP Plus Grades available
• Virtually contaminant free
• Constructed with genuine Teflon™ High Purity PFA resin

PFA High Purity (HP) Plus tubing carries all of the benefits of PFA HP tubing, with the additional benefits of increased ability to withstand repeated flexing; improved resistance to stress cracking when exposed to aggressive fluorosurfactants; and smoother, clearer walls. In PFA HP Plus, we offer tubing with the following outer diameters: 360 µm, 1/16”, and 1/8”.

Specifications & Details

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FEP Tubing

FEP tubing is great for general, low pressure applications. Compared to PTFE, FEP (fluorinated ethylene propylene) tubing is held to tighter tolerances and has lower gas permeability

• Great for moderate-to-low pressure applicationse
• 1/16”, 1/8”, 3/16”, 1/4”, or 5/16” outside diameter available
• 1 mm, 2 mm, or 3 mm outside diameter available
• Maximum continuous use temperature: 50 ºC
• Constructed with genuine Teflon™ FEP resin

Specifications & Details

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ETFE Tubing

• Excellent chemical resistance
• Constructed with genuine Tefzel™ resin
• Holds pressure up to 4,000 psi (276 bar)
• 1/16” or 1/8” outside diameter available
• Maximum continuous operating temperature: 80 ºC

ETFE (ethylene-tetrafluoroethylene) tubing is an excellent fluoropolymer product that offers several benefits over tubing manufactured from PTFE, FEP, or PFA. These benefits include enhanced pressure holding capabilities, increased mechanical stability and lower gas permeability.

Specifications & Details

Ordering Informations

**Please contact technical sales or This email address is being protected from spambots. You need JavaScript enabled to view it. for order or additional information.