Making Swagelok Connections - Agilent Technologies 8860 Maintaining

A Swagelok Connections

Making Swagelok Connections

Making Swagelok Connections
Objective
To make a tubing connection that does not leak and that can be taken apart without damaging
the fitting.
Materials needed:
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1 Place a Swagelok nut, back ferrule, and front ferrule to the tubing as shown in
Figure 23.
2 Clamp a stainless steel plug or similar fitting in a bench vise.
Use a separate stainless steel fitting in a vise for initial tightening of the nut. Do not use an
C AU T I O N
inlet or detector fitting. Strong forces are required to properly set the ferrules, and damage to
an inlet or detector fitting is very costly to repair.
3 Push the tubing into the stainless steel plug. See
4 Make sure that the front ferrule is touching the plug. Slide the Swagelok nut over the ferrule
Nut and ferrules
Plug or fitting
held in a vise
Figure 24.
240
1/8-inch (or 1/4-inch, if used) preconditioned copper tubing
1/8-inch (or 1/4-inch, if used) Swagelok nuts
Front and back ferrules
Two 7/16-inch (for 1/8-inch nuts) or 9/16-inch (for 1/4-inch nuts) wrenches
Front ferrule
Back ferrule
Nut
Tubing
Swagelok nuts and ferrules
and thread it onto the plug.
Assemble the fitting
IMPORTANT!
The narrow end of the back
ferrule fits into the rear of
the front ferrule.
Figure 24.
Tubing
Figure 23.
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