Control cabinet

As part of the Nordstream pipeline
project, Netherlocks has provided an
electro-mechanical control cabinet in
combination with an interlocking
system for the pigging process. A
custom, explosion-proof and climate
controlled control cabinet was
designed and manufactured in close
co-operation with Siemens AG.

A complex dangerous process,
Pigging can be made safer using
mechanical interlocks. However, a
standard interlocking system typically
does not include monitoring, is not
linked to the various pressure levels,
and would not include the facility for
remote operation of MOVs (Motor
Operated Valves).

The Netherlocks control cabinet
combines all these aspects into one
unit: remote MOV operation controls
are included, and correct pressure and
position of MOVs are conditional
requirements to release the keys for
each stage of the process.