PEEK tubing
Do you have an overview of your PEEK extrusion capabilities?
Please see Brochure - PEEK tubing [PDF]
Can I have custom sized PEEK tubing?
Yes, Trajan does extrude custom sizes of PEEK tubing. Minimum order quantities and setup charges apply.
What are the standard outer diameter (OD) sizes available?
- 1/16" OD PEEK tubing for 10-32 ports
- 1/32" OD PEEK tubing for 6-32 and 6-40 ports
- 360 µm OD PEEK tubing for 6-32 and 6-40 ports
- 1/8" OD PEEK tubing for 1/4-28 or M6X1 ports
What do the different colors signify?
Standard industry colors are used to identify inner diameter (ID) size of PEEK tubing.
Will the color leach from PEEK tubing?
Non-leachable colorant is used for PEEK tubing.
What is the maximum temperature that PEEK tubing can be used at?
The maximum temperature rating for PEEK tubing is 100°C.
What is the maximum operating pressure that PEEK tubing can be used at?
The maximum operating pressure (size dependent) for PEEK tubing is 7,000 psi (483 bar).
What lengths of PEEK tubing are available?
Standard configuration tubing is supplied in 5', 10', 50' and 100', 250' and 500' lengths and rolls up to 3000' continuous length.
What solvents can I use with PEEK tubing?
Most solvents including strong acids and bases can be used with PEEK tubing.
What are some solvents that are not recommended for use with PEEK tubing?
Dimethyl sulfoxide (DMSO), methylene chloride, and tetrahydrofuran (THF) will cause mild swelling. Concentrated nitric and sulfuric acids will degrade PEEK.
Can I use stainless steel fittings with PEEK tubing?
Yes. Stainless steel (SS) fittings are fine to use on the 1/16" OD PEEK tubing, keeping in mind that the smaller IDs can close up if you tighten the SS fittings too tight. Care should be taken to test and validate that your flow rates or chromatography are not negatively impacted.
Can I use PEEK tubing as a sleeve over fused silica tubing (FST) in a larger port such as a 10-32 or 6-40 port?
Yes. If using 1/16" OD PEEK tubing, then you will want to use a two piece fitting such as the PEEKLok fitting as increased force is required for the PEEK tubing to bite onto the fused silica tubing. The sleeves will hold to 6,000 psi.
