Tube fitting inserts are used for soft plastic nylon tubing, including PTFE and PFA tubing. The compression tube fitting insert internally supports the soft tubing and allows the tube to connect to hydraulic ports without collapsing. Use this guide to install tube fitting inserts. Simply follow the steps listed below:
1. Fully insert the tube into the insert.
2. Insert both the tube and insert into the port.
3. Finger tighten the nut.
4. Wrench tighten the nut 1.25 turns. Be sure to hold the tube fitting body with a backup wrench or vise.
Note: For 3/16 tube fittings, tighten 3/4 turns.