Ferrules
800-356-1688
•
•
13
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Alumaseal™Ferrules*
• Nomore ferrule fragments in the transfer line; aluminum construction—will not crackor fragment.
• No retightening required after temperature cycles—excellent forGC/MS.
• Eliminate out-gassing,make leak-tight seals, for less detector noise.
• Unique two-piece designpermanently locks on fused silica tubingwithout causingbreakage.
• Will not stick in fittings, unlikeVespel®or graphite.
• Stable to550°C.
• Usewith any
1
/
16
" compression-type fitting.
*Patent pending.
Ferrule ID
Fits Column ID
qty.
cat.#
price
0.4mm
0.25mm
10-pk.
21472
$43
0.5mm
0.32mm
10-pk.
21473
$43
0.8mm
0.53mm
10-pk.
21474
$43
ReducingFerrules
BlankFerrules—For
1
/
16
-InchFittings
Fitting Size
Ferrule ID
Fits Column ID
qty.
Graphite
Vespel
®
/Graphite
1
/
8
"
0.4mm
0.25mm
5-pk.
20205
$22
20254
$24
1
/
8
"
0.5mm
0.32mm
5-pk.
20205
$22
20255
$24
1
/
8
"
0.8mm
0.53mm
5-pk.
20206
$22
20215
$24
1
/
4
"
0.4mm
0.25mm
5-pk.
20203
$22
—
—
1
/
4
"
0.5mm
0.32mm
5-pk.
20203
$22
20257
$24
1
/
4
"
0.8mm
0.45/0.53mm
5-pk.
20204
$22
20217
$24
Fitting Size
Ferrule ID
qty.
Vespel
®
/Graphite
1
/
16
"
no hole
10-pk.
20240
$24
Teflon®Ferrules
• Upper temperature limit 250°C.
• 100%Teflon®; completely inert.
• One-piece design requires noback ferrule.
tech
tip
Choosing theRight Ferrule
Although graphite andVespel
®
/graphite ferrules each have advantages and disadvantages, the choice of ferrule composition is
largely a personal preference.
Graphite ferrules are soft, easy to seal, stable to 450°C, and contain no binders thatmight off-gas.
Vespel
®
/graphite ferruleswork better for vacuum and high-pressure applications (e.g., GC/MS) because theywill not fragment or
allow oxygen to permeate into the system, whereas graphite ferruleswill. BecauseVespel
®
/graphite ferrules aremade from a harder
material, theymight require retightening after several temperature cycles.
Alumaseal
™
ferrules are ideal for GC/MS.Theywill not crack or fragment and require no retightening after temperature cycles.
Fitting Size
Ferrule ID
qty.
cat.#
price
1
/
16
"
1
/
16
"
10-pk.
21122
$27
1
/
16
"
0.4mm
10-pk.
21123
$27
1
/
16
"
0.5mm
10-pk.
21124
$27
1
/
16
"
0.8mm
10-pk.
21125
$27
1
/
8
"
1
/
8
"
10-pk.
21126
$27
3
/
16
"
3
/
16
"
10-pk.
21127
$27
1
/
4
"
1
/
4
"
10-pk.
21128
$27
5mmFerrules forShimadzu17AGCs
• For usewithpacked columns.
• Graphite composition.
Description
qty.
cat.#
price
5mm Ferrules for Shimadzu 17AGCs
10-pk.
21121
$33
