VALVES
139
PEEKSampleLoops
FlexiblePEEKsample loopsarealternatives tostainlesssteel 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, givingPEEK loops added versatility.Natural PEEK is
used for these sample loops. Likemetal loops, the sizedesignations
of PEEK loops are nominal. The actual volumes candiffer from the
theoretical designationsbecauseof the±0.05mm (0.002”) tolerance
of thetubingbore.Accuracyof largePEEK loops (0.8mm,0.030”bore)
is about ±14%, intermediate loops (0.5mm, 0.020”) ±21%, and small
loops (0.2mm, 0.007”) ±65%.
PEEK loopsarealsosuppliedwithunswagedRheFlex
®
fittingsbutdo
not require the same swagingprecaution. Thefittings can reposition
along the loop tubingwhen thefitting reinserts in theports forcorrect
loop installation.
PleaseNote:SeveralofourPEEKSampleLoopscanalsobeusedwith
Valco/VICI
®
sample injectionvalves.Please refer to theproduct listing
on thispage toaid selection.
APPLICATIONNOTE
PEEKPhysical StrengthCharacteristics
AlthoughPEEKmaterial iscompatiblewithvirtuallyall solvents, there
aremany factors that affectburstpressureof PEEK tubing. Factors
suchas increases in innerdiameter, temperature, exposure time, and
concentrationoforganic solventsaffect thedegradationof PEEK.Other
solvents suchaTHF,methylenechlorideandDMSOcausePEEK tubing to
swellwhileconcentratednitricacidand sulfuricacidweaken the tubing.
PartNo.
Volume
Tubing
ValcoNo.
PEEK LOOPSFOR3725, 3725I INJECTIONVALVES
3055-018
2.0mLSample Loop
1.6mm (0.062”) ID x 1/8”OD N/A
3055-019
5.0mLSample Loop
1.6mm (0.062”) ID x 1/8”OD N/A
3055-023
10mLSample Loop
2.0mm (0.080”) ID x 1/8”OD N/A
3055-025
20mLSample Loop
2.0mm (0.080”) ID x 1/8”OD N/A
PEEKLOOPSFOR9725,9010,PR/EV750-100,PR/EV753-100 INJECTIONVALVES
PartNo.
Volume
Bore / Tubing
ValcoNo.
9055-020
5.0µLSample Loop
0.18mm (0.007”) ID x 1/16”OD SL5CWPK
9055-021
10µLSample Loop
0.25mm (0.010”) ID x 1/16”OD SL10WPK
9055-022
20µLSample Loop
0.25mm (0.010”) ID x 1/16”OD SL20WPK
9055-023
50µLSample Loop
0.51mm (0.020”) ID x 1/16”OD SL50WPK
9055-024
100µLSample Loop
0.51mm (0.020”) ID x 1/16”OD SL100WPK
9055-025
200µLSample Loop
0.51mm (0.020”) ID x 1/16”OD N/A
9055-026
500µLSample Loop
0.76mm (0.030”) ID x 1/16”OD SL500WPK
9055-027
1.0mLSample Loop
0.76mm (0.030”) ID x 1/16”OD SL1KCWPK
9055-028
2.0mLSample Loop
0.76mm (0.030”) ID x 1/16”OD SL2KCWPK
9055-029
5.0mLSample Loop
0.76mm (0.030”) ID x 1/16”OD N/A
9055-033
10mLSample Loop
0.76mm (0.030”) ID x 1/16”OD N/A
PEEK LOOPSFOR7725, 7725I, PR/EV700-100
7123-227
1µLSample Loop
Internal groove
N/A
(models PR/EV700-100 andEV750-100only)
7755-015
2µLSample Loop
Internal groove
N/A
(models 7725, 7725i, and 9725(i) only)
REPLACEMENTRHEFLEXFITTINGSFORPEEK LOOPS
PartNo.
Description
Qty.
6000-078
Nut/FerruleSet, Natural PEEK, 5/16-24, for 1/8”OD loops
ea.
6000-079
Ferrules, Natural PEEK, for 1/8”OD loops
5-pk
6000-251
Ferrules, Natural PEEK, for 1/16”OD loops
10-pk
6000-254
Nut/FerruleSets, Natural PEEK, 10-32, for 1/16”OD loops
10-pk
Sample Loops
