Efficient and easy to install, the mechanical connection avoids taking out the welding machine!
On the tube, thread the nut and the double or olive washer (A).
Or the nut, the toothed washer and the rubber seal (B). Push the tube into the fitting body and tighten the nut firmly with a wrench.
In the case of an automatic connector, simply thread the tube into the fitting until you feel the stop. The fitting is in place and perfectly sealed.