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Rheodyne Sample Loops, PEEK

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/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

 



Item Name Product Image Price

Rheodyne 1 ml PEEK Sample Loop for 9725i - 9055-027

Rheodyne 1mL PEEK Sample Loop for 9725i  Product Number: 9055-027 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...
Rheodyne 1 ml PEEK Sample Loop for 9725i - 9055-027 £99.22Buy Now

Rheodyne 1 ul internal groove, PEEK Sample Loop for PR/EV700/750-100 - 7123-227

Rheodyne 1µL internal groove, PEEK Sample Loop for PR/EV700/750-100 Product Number: 7123-227 This 1µL internal groove PEEK and alumina ceramic sample loop fits EV700-100, EV750-100, RV700-100, RV750-100, PR700-100, PR750-100 valves....
Rheodyne 1 ul internal groove, PEEK Sample Loop for PR/EV700/750-100 - 7123-227 £238.98Buy Now
Min:  10

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

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...
Rheodyne 10 ml PEEK Sample Loop for 3725, 3725i - 3055-023 £278.17Buy Now

Rheodyne 2 ml PEEK Sample Loop for 9725i - 9055-028

Rheodyne 2mL PEEK Sample Loop for 9725i  Product Number: 9055-028 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...
Rheodyne 2 ml PEEK Sample Loop for 9725i - 9055-028 £142.01Buy Now

Rheodyne 2 ul Sample Loop internal groove, PEEK for 7725i, 7725, 9725i, 9725, 9010 valves - 7755-015

Rheodyne 2 ul Sample Loop internal groove, PEEK for 7725i, 7725, 9725i, 9725, 9010 valves Product Number: 7755-015 (Peek Loops for 9725 Injector only) This 2µL internal groove PEEK and alumina ceramic sample loop fits 7725i, 7725,...
Rheodyne 2 ul Sample Loop internal groove, PEEK for 7725i, 7725, 9725i, 9725, 9010 valves - 7755-015 £159.12Buy Now
Min:  10

Rheodyne 2.0 ml PEEK Sample Loop for 3725, 3725i - 3055-018

Rheodyne 2.0 mL PEEK Sample Loop Product Number: 3055-018 (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...
Rheodyne 2.0 ml PEEK Sample Loop for 3725, 3725i - 3055-018 £182.69Buy Now

Rheodyne 20 ml Prep Sample Loop for 3725, 3725i PEEK - 3055-025

Rheodyne 20 ml Prep Sample Loop for 3725, 3725i PEEK Product Number: 3055-025 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...
Rheodyne 20 ml Prep Sample Loop for 3725, 3725i PEEK - 3055-025 £377.56Buy Now

Rheodyne 20ul PEEK Sample Loop for 9725i, 1/Pk - 9055-022

Rheodyne 20µL PEEK Sample Loop for 9725i, 1/Pk Product Number: 9055-022 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...
Rheodyne 20ul PEEK Sample Loop for 9725i, 1/Pk - 9055-022 £53.14Buy Now

Rheodyne 5 ml PEEK Sample Loop for 9725i - 9055-029

Rheodyne 5mL PEEK Sample Loop for 9725i  Product Number: 9055-029 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...
Rheodyne 5 ml PEEK Sample Loop for 9725i - 9055-029 £259.40Buy Now

Rheodyne 5.0 ml PEEK Sample Loop for 3725, 3725i - 3055-019

Rheodyne 5.0 mL PEEK Sample Loop Product Number: 3055-019 (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...
Rheodyne 5.0 ml PEEK Sample Loop for 3725, 3725i - 3055-019 £306.39Buy Now