The main differences between grooved welded outlets and threaded welded outlets for pipe fittings:
Grooved Welded Outlet:
- Uses a groove cut around the outside of the pipe end, rather than threads.
- Joined with a grooved coupling that uses a flexible gasket and bolts to seal. No threading required.
- Faster and easier to install than threaded fittings. Just insert pipe and tighten bolts.
- Pipe end is threaded instead of grooved.
- Requires use of threaded fittings screwed onto pipe ends.
- Installation involves threading pipes which takes more time than grooved joints.
- Threads can be prone to leaks over time due to vibration and temperature cycling.
