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Rheodyne 10 ml PEEK Sample Loop for 3725, 3725i - 3055-023

Price: £278.17


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Rheodyne 10 mL PEEK Sample Loop

Product Number: 3055-023

(Peek Loops for 3725, 3725i Injectors)

Flexible PEEK Sample Loops offer an alternative to stainless steel loops. PEEK loop ends are provided with clean, straight cuts for easy valve installation. The material is inert to almost all organic solvents and is biocompatible, which gives PEEK loops added versatility. They are available in 2mL, 5mL, 10mL and 20mL options.

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/VICI® sample injectors. Please refer to the product lising on this page to aid selection.

Application Note

PEEK Physical Strength Characteristics
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.


  • Model: 3055-023
  • Manufactured by: Rheodyne