34
MXT
®
-UnionConnector Kits—For Fused SilicaColumns
• Low-dead-volume, leak-free connection.
• Reusable.
• Silcosteel
®
treatment ensuresmaximum inertness.
• Ideal for connecting guard columns and transfer lines.
• Use to oven temperatures of 350°C.
• Available in union and “Y” configurations.
Previously, easy-to-use MXT
®
connectors could only be used with metal tubing. Now
MXT
®
connectors can be used with fused silica capillary columns, because of a Valcon
polyimide
1
/
32
-inchone-piece fused silica adaptor. This uniquegraphite-reinforced compos-
ite allows capillary columns to slide into and be locked in place simply by loosening and
tightening theMXT
®
union
1
/
32
-inch fitting.
MXT
®
-UnionConnector Kits—For Fused SilicaColumns
Eachkit contains theMXT
®
union, two
1
/
32
-inchnuts and twoone-piece fused silicaadaptors.
Description
qty.
cat.#
For 0.25mm ID Fused Silica Columns
kit
21386
For 0.32mm ID Fused Silica Columns
kit
21385
For 0.53mm ID Fused Silica Columns
kit
21384
MXT
®
“Y”-UnionConnector Kits—For Fused SilicaColumns
Eachkit contains theMXT
®
union, three
1
/
32
"nuts and threeone-piece fused silica adaptors.
Description
qty.
cat.#
For 0.25mm ID Fused Silica Columns
kit
21389
For 0.32mm ID Fused Silica Columns
kit
21388
For 0.53mm ID Fused Silica Columns
kit
21387
1
/
32
-InchReplacement Nut
Description
qty.
cat.#
1
/
32
" Replacement Nut
5-pk.
20389
Valco
®
Connectors—One-Piece Fused SilicaAdaptor Ferrule
We recommend a one-piece adaptor ferrule for use in fittingswhere the ferrulewill not be
removed. Connections aremade and disconnected by loosening the fitting nut and sliding
the tube out. Fused silica adaptor ferrules are available inValcon polyimide for use up to
350°C.Valcon polyimide is a unique graphite-reinforced composite, specially prepared to
maximizemechanical stability at high temperatures. The determining factor in adaptor fer-
rule size selection is the fused silica tubing outer diameter (OD).
Valcon Polyimide
Tubing OD
Tubing ID
Valco
®
#
qty.
cat.#
<0.25–0.4mm
0.25mm
FS.4-5
5-pk.
20137
0.4–0.5mm
0.32mm
FS.5-5
5-pk.
20140
0.5–0.8mm
0.53mm
FS.5V-5
5-pk.
20141
1
/
32
" Replacement Nut
5-pk.
20389
1
/
32
-InchAdaptor Ferrule
Gerstel GRAPHPACK
®
3D/2Connectors
GRAPHPACK
®
technology provides a complete system that quickly and reliably makes
leak-free, low-dead-volume connections. The central component is a metal-jacketed
graphite ferrule—the ideal seal for GC applications. GRAPHPACK
®
ferrules eliminate all
the disadvantages and shortcomings associatedwith previous sealing systems.
**Use onlywithGRAPHPACK
®
3D/2 ferrules.
Ideal forMXT
®
stainless steel to fused
silica capillary connections!
Description
qty. cat.#
GRAPHPACK
®
3D/2 Connector**
(0.25mm to 0.32mm ID)
ea.
20272
GRAPHPACK
®
3D/2 Connector**
(0.45mm to 0.7mm ID)
ea.
20273
Use for fused silica-to-fused silica or
fused silica-to-metal connections!
GRAPHPACK
®
3D/2 Ferrules
Ferrule ID
Fits Column ID qty. cat.#
0.4mm
0.25mm 10-pk. 20271
0.5mm
0.32mm 10-pk. 20270
0.8mm
0.45/0.53mm 10-pk. 20274
