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APPENDIX D. SWAGELOK TUBE FITTING INSTRUCTIONS
These instructions apply to
25 mm (1") and smaller fittings
.
D.1 Installation
1)
Fully insert the tube into the fitting until it bumps against the shoulder.
Figure 9 - Tube Insertion
2)
Rotate the nut until it is finger-tight. (For high-pressure applications as well as high-safety-
factor systems, further tighten the nut until the tube will not turn by hand or move axially in
the fitting.)
3)
Mark the nut at the six o’clock position.
Figure 10 - Make a Mark at Six O’clock
4)
While holding the fitting body steady, tighten the nut one and one quarter turns, until the
mark is at the nine o’clock position. (Note: For 1/16", 1/8", 3/16", and 2, 3, and 4 mm
fittings, tighten the nut three-quarters of a turn until the mark is at the three o’clock position.)
Figure 11 - Tighten One and One-Quarter Turns
