Flexmaster Series Danfoss / Eaton Flexmaster Tube and Pipe Joints Gasket

Both styles are available, so it depends on which one you're ordering. The self-restrained version has a stainless steel gripping ring built right into the gasket, and that ring does hold onto the pipe or tube to prevent it from shifting along the connection. That said, even with the self-restrained style, you still need hangers, guides, anchors, and other external supports in place. The joint is built to seal the connection, not to carry the structural load of the hydraulic lines system. External restraints handle system movement. The gasket handles the seal.

On the bulged, straight-through Flexmaster joints, you can allow up to 4° of angular misalignment per end. If you are using tees, elbows, or crosses, the allowance drops to up to 2° per end.