Today’s safety conscious users are paying greater attention to tube fitting performance. User studies indicate that, while superior fittings will greatly improve performance, problems still occur. Why? Data shows that the leading cause of performance loss is the incorrect assembly of the tubing and fitting. They found, for example, that:
- Difficult-to-reach fitting nuts were not always tightened.
- Improper ferrule set occurred because burrs, or too short a tube length after a bend, prevented tubing from being fully inserted.
- Improper make-up was caused by missing ferrules, because a ferrule borrowed from a fitting in inventory was never replaced.