Ensure an up-to-date administration when installing valve interlocks

Record the progress of the installation in the LOIS (Lock Order Information Sheet) in order to keep an overview and to ensure the information about the interlocked systems in the MRO database is up-to-date. 

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Use commissioning keys when installing valve interlocks

Valve interlocks can only be installed after the installation of valves and often even after mechanical testing. In this phase of the project, time is short. Hence the installation of interlocks always takes place under high time pressure. With the use of commissioning keys, valve interlocks can be installed before steam blowing and hydrostatic testing.

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Knowledge of valve operating sequences vital for valve interlock installation

Most critical to a proper installation of valve interlocks is to install strictly according to the operating logic, or ‘sequence’. Interlocks must be installed strictly according to the operating sequence.

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Prepare for a safe and efficient installation of valve interlocks

In order to have the installation job run smoothly, make sure that the following final preparations are finished. Before the materials are brought into the field for installation, arrange all documents, including permits and risk analysis reports.

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