Hnvdt knight
New Member
Hello! I’m new to plumbing so please forgive me if all the terms aren’t right. I’m replacing a leaky right angle stop valve with compression fitting. Removed the old valve, compression ring, and bolt, and put the new bolt, then ring, then valve on. Hand tightened with the valve pushed all the way back on the pipe. Tightened slightly further with a wrench. At that point, the whole valve/ring/bolt was spinning entirely unattached to the pipe and could easily be pulled off. Gave up and tightened as much as I possibly could using a pipe wrench and channel lock pliers (I know this is frowned upon). After, the valve could still be rotated around the pipe but took more effort. No surprise lots of leaking when I did a test run. Removed the whole setup and saw that the compression ring was still unattached around the pipe and easy to remove. Separating the valve from the nut was very challenging and required several tries with the pliers. All components have been compared to the just removed set and are identical. Any insight why cranking as hard as I can left the ring detached when in theory it should be severely compressed/malformed?