Verify Process Line UP conditions before Start up
Verify process lineup condition before startup.
Verify process lineup condition before startup.
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Step 1 of 23Verify process lineup condition before startup.
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Step 2 of 23Process safety fundamentals are a set of operational rules relevant to process safety, the purpose of which is to prevent releases from equipment.
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Step 3 of 23Scope and risks
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Step 4 of 23This process safety fundamental applies for startup after a shutdown, isolation or modification of a line or equipment, after maintenance works or use of temporary piping.
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Step 5 of 23The risk is related to uncontrolled pressure increases, unintentional mixing or other process anomalies.
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Step 6 of 23These events can be caused by incorrect alignment of valves, lines or tanks or by open ends.
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Step 7 of 23Operating instructions
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Step 8 of 23During a maintenance turnaround, modifications and replacements can be made.
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Step 9 of 23Before startup, physically walk along the lines, checking that the alignment and positions of valves are in the correct position.
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Step 10 of 23The positions of valves reflect what is specified on the P&IDs.
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Step 11 of 23In case of inconsistencies, agree the operations to be carried out with the control room and if required apply for a work permit.
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Step 12 of 23During the walk-on field, verify that the alignment is correct, the valves, where required, are locked and the blind flanges have been removed.
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Step 13 of 23Also check that all drains and vents are closed and fitted with plugs.
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Step 14 of 23The required instrumentation is available and there are no leaks due to incorrect assembly of flanges or seals.
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Step 15 of 23Check that all pipe open ends are properly closed.
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Step 16 of 23Update the P&ID and highlight any deviations.
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Step 17 of 23Tag the valves and the alignment conditions of the equipment on field to support subsequent identification and control.
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Step 18 of 23Always keep in mind that possible challenges on field can be due to pipes or valves that are not easily visible.
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Step 19 of 23Checking on the field may not be easy for the location of the element to be inspected.
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Step 20 of 23It's limited accessibility, poor visibility at night or in bad weather conditions.
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Step 21 of 23Reminder This video illustrates basic rules to be observed during daily activities.
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Step 22 of 23Company procedures, operating instructions and work permits govern the execution of each intervention.
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Step 23 of 23Not complying with them could cause damage to people, the environment, assets and have a possible impact on the company's image and reputation.