Insert the Tube Fittings Assembly and tighten the nut as per assembly instruction provide in this catalogue in section of Installation Instructions (1.1/4 turn form- tight) and the joint is ready to take any kind of pressures from low to high.
The front ferrule, as it is urged forward against the tapered area of the body is forced inward gripping and subsequently sealing the leading edge tightly onto tubing.
Simultaneously the back. Ferrule , done tailed directly behind the front ferrule, swages beneath its trailing edge affording the desired “coining” action and mechanical connection of tubing and fitting.
It is this interaction of ferrules that allows NU-LOK too achieves its excellent sealing capabilities under a wide variety of application variables.
