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LOTOTO mechanical isolation

LOTOTO mechanical isolation

Dec 03, 2020

LOTOTO mechanical isolation

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Double shutoff valve discharge valve isolation (DBB)

First isolation valve on operating system (upstream)

Sub-line monitoring point (manometer or vent/drain point)

Second isolation valve on operating system (downstream)

Monitoring point between valve and break point (pressure gauge or vent/drain point)

Drain valve between isolation valves