APPENDIX 1: COMPRESSION CONNECTIONS
To install Compression Tube Fittings:
1. Insert the tubing into the Compression
tube fitting. Make sure that the tubing rests
firmly on the shoulder of the fitting and that
the nut is finger-tight.
2. Scribe the nut at the 6 o’clock position. By
scribing the nut at the 6 o’clock position as
it appears to you, there will be no doubt as
to the starting position.
3. Hold the fitting body steady with a backup
wrench and tighten the nut 1¼ turns. Watch
the scribe mark, make one complete
revolution and continue to the 9 o’clock
position. When the nut is tightened to the
9 o’clock, you can easily see the fitting has
been tightened properly.
Compression connections can be
disconnected and retightened many times.
To retighten the Compression connection:
1. Start with the disconnected fitting.
2. Insert tubing with preswaged ferrules into
fitting body until front ferrule seats.
3. Tighten the nut by hand. Rotate nut to
the original position with a wrench. An
increase in resistance will be encountered
at the original position. Then tighten
slightly with the wrench.
HP4750 Cell Manual | Sterlitech Corporation
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