TheVu-Union
®
connector uses a glass taper seal identical to that of the
Press-Tight
®
connector, thus achieving a leak-free sealwithout deadvolume.
It alsoprovides amechanical seal that prevents the column frommovingor
separating, thus giving extra reliability for critical applications such asMS.
TheVu-Union
®
connector is available in two configurations:
•
Standard
—joins tubingusinggraphite ferrules.
•
Vacuum
—for applications likeMS; uses aVespel
®
/graphite ferrule.
There is a standard, straightVu-Union
®
connector for joining a guard column
to an analytical column, and a ‘Y’Vu-Union
®
connector for joining a guard
column to two analytical columns.
0.33/0.74mmVu-Union
®
Connector:
cat.#20418 (ea.)
Replacement Inserts:
cat.#20419 (3-pk.)
GCColumnConnectors
800-356-1688
814-353-1300
Vacuum Vu-Union
®
At-a-Glance
Product
Information
fromRestek
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Leak-free seals for reliable connections
*Press-Tight
®
Connectors are available with
Siltek
™
deactivation, which features high
temperature stability, extreme durability, and
low bleed. Ask us about Siltek
™
deactivation
when you order.
Vu-Union
®
HelpingHand
TheHelpingHand
is includedwith
allVu-Union
®
connectors and
makes assembly
very easy!
‘Y’Vu-Union
®
Connector:
cat.#20432 (ea.)
Replacement Inserts:
cat.#20433 (ea.); cat.#20434 (3-pk.)
Connecting twopieces of fused silica tubing is a necessary task for gas
chromatographers. This includes connecting a guard column to an analytical
column, or connecting a column to amass spectrometer (MS) transfer line.
Nomatterwhat the connection, the ultimate goal is to ensure a leak-free seal
without causingdeadvolume. Restek connectors canhelp accomplish this
goal easily.
Press-Tight
®
Connectors*
• One connector fits all standardRestek tubingouter diameters.
• Taper sealingmechanismmeans nodeadvolume, leak-free seal.
• Quick to install; saves time.
• Many configurations available.
• Stable to325°C.
ThePress-Tight
®
connector is one of themost commonlyusedproducts for
joining twopieces of fused silica tubing.Whenused correctly, thePress-
Tight
®
connector creates a leak-free seal between fused silica tubing
without deadvolume. Press-Tight
®
connectors are available in a straight
configuration, which traditionally is used for connecting a guard column to
an analytical column; a ‘Y’configuration for connecting a guard column to
two analytical columns; and an ‘X’configuration for special connection
needs. The straight connector and ‘Y’connector also are available in an
angled configuration to lessen the strainon the fused silica tubing.
Vu-Union
®
Connectors
• Taper sealingmechanismmeans nodead
volume, leak-free seal.
• Addedbenefit of amechanical seal so the
connectionwon’t separate.
• Vacuummodel available forMS applications.
• ‘Y’configuration also available.
To order, call 800-356-1688 or
814-353-1300, ext. 3, or your local
Restek representative.
