# How the Flange Spreading Wedges Work

When spreading a flange joint, it is recommended to use two wedges set 180 degrees apart on the joint. This will ensure that the flange joint can be opened evenly.

1. The flange spreading wedge is placed between the flanges to be spread with the full step area fully inserted as far as the heel of the chosen step.

2. The flange is spread using either mechanical ACMS08T or ACHS14T.

3. Once the joint has been opened to the desired distance, the safety blocks are inserted into the flange joint and the pressure released gradually back onto them.

4. The wedges can then be re-inserted using the next step and the flange joint can be opened further.

5. Repeat this procedure until the flange joint has been opened wide enough to carry out the remedial work (for example, gasket replacement).

## Applies to: