Cabinet for pigging process

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

Pigging is a notoriously complex
and dangerous process, but one which
can be made safer by using
mechanical interlocks. Unlike a
standard interlocking system, the
control cabinet includes monitoring,
is linked to the various pressure levels,
and includes the facility for remote
operation of MOVs (Motor Operated
Valves). It also guides the operator
through the sequence safely.