For a 180-degree tubing bend, where should the zero on the forming wheel of the bender be aligned?

For a 180-degree tubing bend, the zero on the forming wheel of the bender needs to be aligned with the 180-degree mark. This is because the forming wheel acts as a reference point that indicates the angle of the bend being made. When making a full 180-degree bend, aligning the zero on the bender with the 180-degree mark ensures that the tubing is bent into a complete half-circle, which is essential for achieving the desired direction and fit in piping or tubing applications. Ensuring correct alignment is vital to maintain the integrity of the tubing during installation, as improper bends can lead to stress points that may cause leaks or failure in the system.