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.