Interruptions to operation for more than 48 hours

For longer interruptions to operation (over 48 hours), the following steps must be carried out:

1. Close all valves and fully depressurise the pressure regulator by turning the of the handwheel anticlockwise as far as it will go.
2. Open valve PLI to reduce the pressure.
3. Close valve PLI.
4. The valve on the consumer remains closed, meaning there is excess pressure in the lines.