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Vu2 Union Connectors

  • Connect a guard column to an analytical column.
  • Connect a column to a transfer line.
  • Connect two columns in series.
  • Repair a broken column.
  • Fit both Restek cage designs.
Documentation and Instructions Sheets

Vu2 Union Connectors

Catalog #

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Product Options

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Catalog # Clear All
21105 0.18–0.28 mm kit Select Deselect

Catalog # 21105

Fits Column ID
0.18–0.28 mm  
Units
kit  
Includes
Vu2 Union body, knurled nuts (2); Press-Tight unions (2); and ferrules (4)  
Product Name
Vu2 Union Connector Kit  
21106 0.32 mm kit Select Deselect

Catalog # 21106

Fits Column ID
0.32 mm  
Units
kit  
Includes
Vu2 Union body, knurled nuts (2); Press-Tight unions (2); and ferrules (4)  
Product Name
Vu2 Union Connector Kit  
21107 0.45–0.53 mm kit Select Deselect

Catalog # 21107

Fits Column ID
0.45–0.53 mm  
Units
kit  
Includes
Vu2 Union body, knurled nuts (2); Press-Tight unions (2); and ferrules (4)  
Product Name
Vu2 Union Connector Kit  
22220 0.10–0.15 mm kit Select Deselect

Catalog # 22220

Fits Column ID
0.10–0.15 mm  
Units
kit  
Includes
Vu2 Union body, knurled nuts (2); Press-Tight unions (2); and ferrules (4)  
Product Name
Vu2 Union Connector Kit  

Restek’s Vu2 Union connector combines the simplicity of a Press-Tight union with the strength of a metal union.

How does a Vu2 Union connector work?
A Press-Tight union in the Vu2 Union connector joins the fused silica tubing ends together; the ferrule and knurled nut at each end of the connector hold the tubing in place via a secondary seal between the ferrule and the Press-Tight union. Each knurled nut applies independent pressure to each ferrule to make leak-tight seals with the column ends. These ultra-strong connections will not unexpectedly disconnect under temperature changes, vibrations, or other stresses normally encountered in GC analyses. The open design allows visual confirmation of the seal between the column and the Press-Tight union to ensure confidence in the connection. Hang the connector from the column cage to minimize stress on the connections.

Who will benefit from using Vu2 Union connectors?
Any analyst using guard columns, transfer lines, or restrictor tubing; performing a dual-column analysis with columns connected in series; or seeking to repair a broken column will find Vu2 Union connectors the simple, reliable, easy-to-use solution to their connection needs.

Kits include: Vu2 Union body, two knurled nuts, two Press-Tight unions, and four ferrules

Note: This product is not recommended for GC column-to-MS connections.