Like the NanoTight™ FEP Sleeves, these PEEK Tubing Sleeves are designed to be used with 1/16” OD, 10-32 threaded fittings to adapt capillary tubing to standard coned ports. They are designed to withstand higher pressure than the FEP sleeves. Made of PEEK polymer, these 1.3” long sleeves can be used up to 125 °C.
These sleeves require a wrench tightened nut to achieve proper sealing. We recommend the F-140 Two-Piece Fingertight Fitting, which includes a PEEK ferrule or the hex-head SealTight™ fittings. Many researchers also use a stainless steel nut and ferrule with these sleeves, such as our U-400 and U-401.
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