Line Stopping
The following is the basic procedure:

1. Line stop equipment is installed on the temporary tapping valve and the valve is opened.
2. Line stop head enters the pipeline through the hot tap connection.
3. Temporary seal is achieved and pipeline flow is stopped (unless bypass is in place).
4. Repair, alteration, or relocation of the pipeline is performed.
5. Line stop head is removed from the pipeline through the hot tap connection.
6. Temporary valve is closed and the line stop equipment is removed.
7. Completion plug is installed on the tapping machine.
8. Tapping machine is installed on the temporary tapping valve.
9. Temporary tapping valve is opened and the completion plug is installed in the branch of
the line stop fitting and locked into position.
10. line stop equipment and temporary valve are removed from the line stop fitting.
11. Blind flange is installed on the line stop fitting.