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Charlotte Stonestreet
Managing Editor |
CONTROL CABINET
23 October 2012
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.
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.
