PEEK sample loops
Flexible PEEK sample loops are alternatives to stainless steel loops. PEEK loop ends are provided with clean, straight cuts for easy valve installation.
PEEK polymer is inert to almost all organic solvents and is biocompatible, giving PEEK loops added versatility. Natural PEEK is used for these sample loops. Like metal loops, the size designations of PEEK loops are nominal. The actual volumes can differ from the theoretical designations because of the ±0.05 mm (0.002”) tolerance of the tubing bore. Accuracy of large PEEK loops (0.8 mm, 0.030” bore) is about ±14%, intermediate loops (0.5 mm, 0.020”) ±21%, and small loops (0.2 mm, 0.007”) ±65%.
PEEK loops are also supplied with unswaged RheFlex fittings but do not require the same swaging precaution. The fittings can reposition along the loop tubing when the fitting reinserts in the ports for correct loop installation.
Please Note: Several of our PEEK Sample Loops can also be used with Valco/VICIR sample injectors. Please refer to the product listing on this page to aid selection.
Although PEEK material is compatible with virtually all solvents, there are many factors that affect burst pressure of PEEK tubing. Factors such as increases in inner diameter, temperature, exposure time, and concentration of organic solvents affect the degradation of PEEK. Other solvents such a THF, methylene chloride and DMSO cause PEEK tubing to swell while concentrated nitric acid and sulfuric acid weaken the tubing.
|3055-018||PEEK Sample Loop for 3725i 2mL|
|3055-019||PEEK Sample Loop for 3725i 5mL|
|3055-023||PEEK Sample Loop for 3725i 10mL|
|3055-025||PEEK Sample Loop for 3725i 20mL|
|9055-020||PEEK Sample Loop 9725i 5µL|
|9055-021||PEEK Sample Loop 9725i 10µL|
|9055-023||PEEK Sample Loop 9725i 50µL|
|9055-024||PEEK Sample Loop 9725i 100µL|
|9055-025||PEEK Sample Loop 9725i 200µL|
|9055-026||PEEK Sample Loop 9725i 500µL|
|9055-027||PEEK Sample Loop 9725i 1mL|
|9055-028||PEEK Sample Loop 9725i 2mL|
|9055-029||PEEK Sample Loop 9725i 5mL|
|9055-033||PEEK Sample Loop 9725i 10mL|
|7123-227||1µL PEEK Internal Sample Loop for PR/EV700/750-100|
|7755-015||2µL PEEK Internal Sample Loop for 7725i/9725i|
|1800||PEEK Sample Loop Assembly 2µL|
|1810||PEEK Sample Loop Assembly 100µL|
|1826||PEEK Sample Loop Assembly 20mL|
|9055-022||PEEK Sample Loop 9725i 20µL|