Library / Applicable to all Oil & Gas Operators GUIDELINES FOR THE OPERATIONS OF PETROLEUM REFINING FACILITIES Code: DPR GUIDE 0044 - 2021 Review Date: 3rd February 2021

Applicable to all Oil & Gas Operators GUIDELINES FOR THE OPERATIONS OF PETROLEUM REFINING FACILITIES Code: DPR GUIDE 0044 - 2021 Review Date: 3rd February 2021

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Applicable to all Oil & Gas Operators
GUIDELINES FOR THE OPERATIONS OF PETROLEUM REFINING FACILITIES
Code: DPR GUIDE 0044 - 2021

Review Date: 3rd February 2021

Pressure Vessels
1. All pressure vessels and its fittings in use in the refinery shall be regularly
inspected and examined in line with the recommendations of the Department
and where no recommendation exists, the inspection shall be carried out in
accordance with the codes and standards to which the vessel was built.
2. Oil Heaters and its internal and external parts and fittings shall be inspected not
more than 18 months from first commissioning, thereafter at intervals of
24months and the fire tubes replaced when they are below minimum thickness.
3. Every separator and scrubber shall be tested to one and half times the maximum
allowable working pressure. Whenever the opportunity occurs but at intervals
not exceeding five years, and in the presence of DPR representative(s).
4. Every compressed-air receiver shall be:
i. drained of liquid every day; and
ii. hydrostatically tested to the recommended pressure when the internal
surface of the receiver cannot be inspected, and in any other case, not
less than once in every 5 years
5. Every other pressure vessel, other than the ones listed above, shall be inspected:
i. Whenever the opportunity occurs, or
ii. At intervals not exceeding five years, and
iii. tested hydraulically to the recommended test pressure during the
inspection.
Note: All inspections and tests shall be carried out in the presence of DPR representative(s)
and records of every inspection carried out shall be maintained and made available on
demand to DPR representative(s).