How to correctly install compression screws and ferrules on HPLC / UPLC metal tubing - WKB109755

OBJECTIVE or GOAL

How to correctly install compression screws and ferrules on HPLC / UPLC metal tubing

ENVIRONMENT

• ACQUITY UPLC
• ACQUITY UPLC H-Class
• ACQUITY UPLC I-Class
• Alliance

PROCEDURE

1. "Thread" the tubing through the compression screw and ferrule and ensure the tubing is fully bottomed in the fitting hole.
2. Finger-tighten the screw until it doesn’t rotate any further and then make a mark on the screw.
3. Add 3/4-turn using a wrench while checking the mark on the screw.
4. Remove the screw and ferrule and check ferrule is secure.
5. Re-install the screw and ferrule, finger-tighten and add 1/4 turn using a wrench.

ADDITIONAL INFORMATION