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Reply To: Decoking preparation

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#28742

Hedewandro Lucredi
Participant

In order to avoid the operator goes to the drum bottom during the drum opening to pinned the bottom unheading valve opened, we intend to improve the SIS interlock that we do not need to do this operation. What is the risk of this proposal ? Damage to the automatic bottom drum valve ? Damage to the decoking drim stem ? Is this proposal (operate de drum bottom unheading opened with no pinned) usual ?

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