Waters ACQUITY UPLC M-Class System Manual page 40

Figure 2–8: First use tightening
Figure 2–9: First use with preset ferrule
Flats
Compression screw
Lock ring
Ferrule
Tighten the fitting finger-tight until first resistance is felt, plus as much as an additional 1/4-turn
using a 1/4-inch open-end wrench.
Tip:
To prevent band spreading, ensure that the tubing is fully bottomed in the connection port
before you tighten the compression screw.
Figure 2–10: First use tightening
November 26, 2019, 715003588 Revision C
Page 40